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Found 60 results

  1. Well I ordered all the parts this morning to do the rear axle shafts and brake job. Truck has 81,XXX miles on it. Factory pads are about gone. The passenger side axle shaft seal is back to leaking pretty bad. It was R&R'd at 16k and has been sweating ever since and the dealer didn't want to hear it. 9 months later when I bought our new Enclave, I made sure I didn't step foot in that dealer. Anyway, I've also had the driveshaft balanced by a local shop which helped out quite a bit. All but one person who I've found did Yukon shafts said it fixed the vibration. So for $260, worth the old college try. Parts list en route are.... -Yukon Axle Shafts -ACDelco Wheel bearings (both sides) -ACDelco axle shaft seals (both sides) -GM Diff cover gasket (yes I know its reusable but I've already used it once with my PML Cover and put silicone on it. ) -Raybestos Police package rotors. I read that these are mill balanced to a pretty good spec. Tolerances in general are much tighter. -Raybestos hybrid ceramic truck pads While I have it apart I'm going to do a gear pattern check, R&P backlash check at multiple locations around the ring AND check the pinion pre-load measurement. I read that one of these lemon buy back vibrators was donated to a tech school and upon disassembly the pinion pre-load was zero. Yes, zero. So i'm going through the axle my way.
  2. I know this is going to look suspicious being only my third post but I wasn't sure what forum to join at first. I have noticed a shake or vibration in my new 4x4 crew 5.5 box 5.3 truck it seems to come and go and has been a pain to pin point what makes it happen. I can feel it in the steering wheel, seat and sometimes the gas petal but mostly in the steering wheel. It seems to be most noticeable going up or down hill with very light acceleration but can do it on level ground at cruise speed too. And the fun part is it doesn't always do it to make it more of a challenge to diagnose it. Brought it to the dealer last week and I thought the mechanic was going to think I was crazy but he did feel it too which was a relief also the service writer test drove it after they balanced and rotated the tires and he said its slight, but he felt it too. We scheduled it to come in tomorrow and are opening a warranty claim. I have very little faith that its going to get fixed because of the nature of the vibration and it being so new that there probably isn't any info out there on what it could be. I really don't know what they can do tomorrow other then make phone calls. If I had to venture a guess I'm going to say its in the transmission or possibly the engine. We also have a 2012 equinox and on the same roads there's no vibration at all. Also I have the z71 and man does that thing ride STIFF! Every repair strip in the tar is felt hard! Anyone know if it just takes some miles to get the shocks broke in (2600 on it now)? My 04 was a z71 too and rode much, much softer then this. I would really like to get this figured out because it, along with a few other smaller things is preventing me from loving this truck.
  3. First off, I did a search and the only thread that appeared was the 41 page "Shake or Vibration" thread. But after looking through about half of it, nobody appeared to have a problem similar to what I'm observing. Since I've taken delivery of my Denali in December, I've been noticing a slight vibration in the floorboard when accelerating, and then at certain RPMs. I've had tire and balancing issues before on other vehicles, and this is definitely not related to the tires or even speed - my truck rides smooth as glass. My problem is related to engine RPMs and slight vibrations and is only noticed at my floorboard. The vibrations aren't too bad, but the issue is that my feet (mostly left and right heel) start going numb on moderate to long length drives. When I was younger I had a job as a bike assembler using power tools all day and I would experience the same numbness/tingling in my hands after a long day of building bikes. When the vibration occurs, I can generally let off the gas a little and it'll go away. But it's present much of the time. It's so slight that I didn't really care, but now that it's causing my feet to go numb, I can't ignore it. Has anybody else noticed something similar? It feels like maybe a motor/transmission or body mount is bad. I'm going to mention it the next time I'm in for service, but wanted to see if anybody else was experiencing something similar. Thanks.
  4. Just replaced e driver side engine mount. After the install, my idle/park started rough idling specially it has more vibration and noise during Reverse. Any idea what could cause this?
  5. Good morning, So I'm finally going to reach out to my fellow Silverado and Sierra owners. I have been dealing with a harmonic vibration issue with my 2014 Silverado crew cab 5.3 2WD for around 5 months. I have taken my truck into 3 different dealers to only have the driveshaft replaced under the powertrain warranty and it fixed about 40% of my vibration issue. The vibration can be felt in the gas pedal, steering wheel, seat, and it can be heard. It sounds a lot like a phasing boom. The dealer that replaced the driveshaft has said they now believe its my "CHEAP hancook tires" but I can duplicate the vibration with the truck supported on jack stands under the axle housing (not changing the pinion angle) with the wheels removed. Now with the wheels removed the vibration is not as bad but its still the same vibration I'm experiencing. One dealer told me I have a bent axle but I don't have any wobble side to side with the wheel on. the driver side wheel does look like it has a highspot with the wheel installed (you can swap wheels with the same results). the tech that replaced the driveshaft said he checked the axles and the checked out okay... Now I have yet to get a good dry warm day to throw a dial indicator on it myself to check but I wanted to check with yall and see what you think. the next nice day I get I plan on pulling the diff cover and taking a look inside. but any help would be much appreciated. I took it in to see about trading back into a Toyota and they didn't want to give me hardly anything for it and the new TRD Tacoma I drove just seemed so cheap for the $36,xxx they wanted for it. My Silverado has a lot more features plus im a fan of the LS engines so I plan on trying to resolve this issue before I try to trade it again. vibration is felt from 20-70+mph the worst is 55-65mph. running boards have been removed, new trans mount, new complete driveshaft. tires have been rotated and the vibration is still coming from the rear center of the truck. Vibrates in V4 & V8, and in neutral. I also have a case opened with GM on this issue since October 2018 so it's well documented. 2014 Silverado LT 5.3L 6l80e 2WD crew cab. (built in the mexico plant) 87,XXX MILES. Please keep the stupid comments to yourself. I just want to get this issue resolved so I can enjoy this truck.
  6. My 2018 Sierra SLT Crew Cab has an annoying buzzing sound, rattle, or vibration when in motion that come from the headliner, overhead console area. When I lightly press up the headliner or plastic molding in this area the noise stops. I only hear it when no radio is on but annoying on a year old truck GMC. It is not the eye glass holder that I can tell. Any ideas? Do you think the warranty should cover silencing this vibration?
  7. I'm new to forum, I have a 2002 Chevy Silverado 2500 Standard Cab 2 door ( Not a HD ) My Center support Bearing for my driveshaft is Bad. I have searched continuously for a video that has the support bearing (SB) in the same location and cant find one. My SB is Not hanging like others but it was located above the frame. Is this correct? My truck has ran fine for years until this went and I was wondering if the SB was supposed to be installed below the frame ( appearing to hang). Thanks for everyone's cosideration and help
  8. Ok so I have a 99 sierra 2500 4x4 6.0. Parked it last night no problems. Get in this morning back out and put in drive . As I pushed the gas and started straightening the steering wheel the front driver side made a loud pop sound. After that accelerating I had a vibration for a while. Stop and take off no pop but vibration. I drove for about 45 mins vibration went away. I put in 4wd low no issues 4wd hi no issues. Any clues?
  9. Hi all, I have been in the vibration forums for a couple months now and have decided to make a new thread dedicated specifically to the Class Action Suit that I have been working with a lawfirm in Boston. Over the course of the last month, the firm has been actively investigating the issues many of us are seeing in our vehicles. Let me be a little more specific, They have hired outside investigators who are working with the top level partners at the firm to actively research, test, and and inspect the trucks, looking into the Vibrations, Radio Reception, and Transmission issues. I have been sending them any and all information that I come across, that is sent to me or posted in the forums that could potentially help them. In the mean time, I am and have been taking names, email addresses, phone numbers, trucks, locations (city & state) and if you have yet to rid yourself of the truck (trade or otherwise), and now what your issue(s) are/ were. It doesn't matter if you have gotten rid of your truck or not, at worst we may only be able to use your case, at best, we may be able to get you some form of compensation (I can not say for sure, that is up to the attorneys to figure out, what extent that this can go) If you would like to be added to the rapidly growing list of people who wish to be contacted please send me a PM with the information mentioned above. (please note: I can not guarantee the attorneys will contact you, however the more people who join the list, the more powerful the case, and the better off we are) Good Luck with your trucks, Jesse D. ------EDIT------ I decided to combine the yes and and about to send information to Jesse D. into one line item. those of you that have sent me your info or those who were in the about to category please resubmit your vote to the correct line. those of you who haven't voted but already sent me your info, please submit your vote, i would like to try to keep this as accurate as possible. I do have some names from people I have talked to who are not on the forum, so I know it will never be 100%. Thank you Jesse D.
  10. 9/15/15 - I took delivery of my 2016 Yukon XL Denali around noon. This truck was DX'd from another dealership approximately 100 miles away and was driven here on Monday (9/14/15). I took a quick test drive and was focused on the buffeting issue. It was definitely there but didn't seem to be as bad as previous vehicles that I had driven. On my way home I noticed some severed vibrations above 70mph all the way up to about 80mph. I called the service department yesterday afternoon and made an appt for this morning. We needed the room that this vehicle provides fairly quickly (lots of travel with soccer, aging parents, etc. - my wife, two young daughters and two puppies less than a year old). Some say why didn't you just swap it out with another one? This configuration was exactly what I wanted and, unlike White Diamond, the Summit White's are hard to locate, especially a 2016. 9/16/15 - took car in and described in detail what i had experienced (the buffeting and the vibration). 3 hrs later they informed me that a GM representative happened to be onsite and that they found 3 of the 4 tires to be significantly out of balance (via road force balancing). They have 20-30 (I don't recall which exact number) tires in stock of the same exact model that's on my Yukon XL (22"). They are having to put a tire on a rim to get them all matched which should solve the vibration problem. I was put into a Chevy Impala from Enterprise (there is world championship bike race in town for the next week so all larger rentals are gone, apparently). EDIT: They called me back and offered up a 2016 Acadia Denali from the dealership. Not a Yukon XL BUT certainly not an Impala. Stay tuned.
  11. Hey guys, I posted in the giant thread about my fix but I'm sure it's already gotten lost. I think this is important to at least have floating somewhere for someone to search. Symptoms: At 60-70mph I was experiencing a severe shake/vibration. I could usually push out of it at 70+ but it was still noticeable. It was like clock work as soon as I hit up around 60mph. Solution: I got my truck fully inspected before purchase and they noted the vibration. Mechanic showed me a dent in the drive shaft and general wear on the shaft. His recommendation was to replace it. I ordered the part online. The new shaft came fully assembled with new Ujoints and the yoke to slide in. Installation was very easy. I have driven 100 miles since installation and I have ZERO vibration. I hit 60mph and it is very smooth. So the culprit could be the shaft the ujoint or the yoke. Once again this fix worked for me and it may not be the same issue on your truck but I had pretty bad vibrations and they are GONE. Good luck!! *NOTE* I have no warranty so that is why I attempted a fix on my own. I'm sure this problem will still crop up as peoples warranty starts to expire.
  12. Hey guys just bought a 2016 Chevy Tahoe LTZ on November 10 and it has been shaking and vibrating at speed above 67mph. I noticed a lot of vibration driving on the way home the first day,so took it back the very next day. The dealer did balancing and gave it back to me but it still vibrated so took it back the next day again. This time dealer kept it for 2 days and replaced 2 tires which could not be balanced and then gave it to me. The truck still had the vibration so I took it back immediately and asked them to look at it. The mechanic acknowledged that vibration is present and said that it is normal and all of them do this. So I test drove an indentical suv and that did not vibrate. So the dealer kept it another few days and are now changing all the tires again. At this point I think there is something wrong with the suv as it has been in the shop for more days than I have driven it. It has only 500 miles and all are due to service advisors's test rides to check for shake. Dealer has been courteous so far but I don't think they have a clue about what is wrong with it. Any pointers what could be the problem? I am seeing lot of other posts with similar problems on the forums but no resolution so far. Reached out to GM but no replies so far. Very concerned and frustrated with this purchase.
  13. Actual photo of my brand new 2018 Silverado High Country. It's been at the dealer for about 2 weeks now - still has the temporary tag on it. I asked them to look into the vibration in the steering wheel. Haven't seen it since. I think the dealer is doing what they can and trying to fix it. But they don't seem to be getting any support from Chevrolet/GM. Nothing like replacing that new car euphoria with a good swift kick in the balls. #Chevrolemon
  14. anyone else have a problem after lowering there Silverado. After I did a 2x4 drop when I hit 80 mph the driveline starts to vibrate. Anyone find a fix for this.
  15. Hi Everyone, So my truck has been at the dealership two times officially now. This 3rd time I had my friend look over it and he said the truck was within GM's specs. I don't know what GM's specs for vibration are but my vibration is in the mid 70mph range and excessively vibrates and then smooths out. This is a constant cycle throughout my commute. I am going to pull my driveshaft and take it to a shop that specializes in driveshafts. I know several people have had their driveshafts replaced under warranty and it did not correct the issue. My thoughts are if your truck originally came with an out of spec driveshaft chances are there is a whole stockroom somewhere in the Parts Department that has out of spec driveshafts mixed in with the ones without issue, hence the reason some people have no luck with driveshaft replacement. I really feel this could be one of the major issues behind all of this especially when there is documentation instructing the technicians at the dealerships to use hose clamps to balance the driveshaft. I'm sorry but I don't see hose clamps as a permanent correction to this issue. I will update this post when I get the results from the driveshaft inspection. Please feel free to share your thoughts and bounce ideas around. Collectively I believe we can find an aftermarket fix for this issue, it may not 100% resolve the issue but will at least save people from taking huge losses on trade in (if you did not go through a buyback/lemon/customer satisfaction program). (A lot of people are trading in / selling their trucks because of this issue) ***UPDATE 01-22-2016*** I contacted the Team at Precision Shaft Technologies (http://pstds.com/) in Clearwater FL and they were able to squeeze me in as a walk in. (Not there normal protocol. They were super friendly, informative, and VERY helpful!) I drove up there and pulled the driveshaft in their parking lot. They then put the driveshaft on a machine and it was a near perfect balance. They added one small shim to the U joint to get it perfect but I'm sad to say the vibration is still present and there was no change. However, when I returned home I put my truck up on jack stands and ran it up to the speed I had issues at (per GM's service docs) and there was NO vibration. I was extremely confused at this point. I dumbed it down and looked at the rear wheels while the truck was in drive (idle speed) on the jack stands (be sure to block your front wheels and disable traction control / StabiliTrak if you plan on doing this on your own). I noticed my left rear wheel has a slight flat spot it in so much so that it's extremely difficult to notice. I have not had a chance to swap a known acceptable wheel to the rear at this time. When I do I will update this post. A recap for a description of my vibration: -72-74 MPH there is a cyclic vibration. Roughly every 7-8 seconds the truck has a vibration and then the vibration disappears.
  16. You guys seem to post useful info, perhaps you can help. In short, I started noticing significant vibration that progressively got worse, beginning around 10k miles (now have about 25k). I assumed tires and went through the usual troubleshooting... balanced them a couple of times, rotated, etc. Stock 20 inch wheels. I don't have much faith in factory tires, so I replaced them with stock size Michelin LTX MS/2. It rode a lot better for a couple hundred miles, then I noticed vibration getting worse again. Had tires rebalanced. Called Chevy dealer (3 months ago), they were dealing with this issue and had no answers yet and several trucks waiting diagnosis. Started doing my own diagnosis... visited dealer again and he told me Michelins could be the problem. He can put picometer on the truck but they won't fix the center console vibration because it's just something we have to live with according to him. No joke... you can put a bottle of water in the console (60/40 split) and it will occasionally slop out the open top. To be fair, it rides OK... a lot better than my wife's Jeep Wrangler. But in my mind you shouldn't be able to even have this dissussion... the Siverado shouldn't have this kind of vibration at all. All said... I'm still feeling a bunch of pulsation in the steering wheel at idle and more vibration up to 1200-1800 rpm. This is a pulsation up and down with overall vibration, it does not wobble like a bad front tire. It has little to no change with road conditions (cracks, bumps, etc). Not much change if at all if you drop it in Neutral. It seems to me to be more related to RPM than speed or road conditions. You do feel a different ride condition if you're on concrete... a little stiffer ride, but that's not the vibration I'm feeling in the steering wheel. Every now and then you get a sensation like a broken shock (remember the 80's silverado's?), but it's not consistent. Any thoughts or help? I'll get back to the dealer and hook up their pico-meter... I suspect a bad motor mount or some rotating engine attachment with a balance problem. Perhaps other vibration in the frame coming up the steering column. I would think a bad power steering pump except the electric steering kind of kills that idea... I've driven GM trucks my whole life and I've never seen one that runs this well have this much vibration. When I got in it, it rode like a Cadillac. Now it feels a whole lot more like an old Dodge or really old Ford. Frustrating thing is that it's not consistent... same roads, sometimes different levels of vibration. I am convinced it is not speed related, which takes tire balance out of the equation. This is Houston, TX... I just realized that the vibration seems to be a little less severe lately. Daytime highs are 90-95 right now, evenings are quite a bit cooler. Perhaps a coincidence... I'm grasping at straws now. Thanks for any help... or other ideas about how to diagnose it.
  17. What up fella's. I've been back and forth the past few months with my dealership in regards to the severe vibration I'm having on my 2017 Silverado Z71 Crew cab. The vibration occurs between 74-84 mph. It rides worse than the 2011 I traded for it. I feel it in the steering wheel, the gas petal, seats and center console. My main concern is it vibrates the hell out of my daughter in her car seat, which tears me up inside. There is no way we can take her for long drives in it as it makes her physical irritable and sick. Here's a video - https://www.youtube.com/watch?v=7giDNI70pTk&feature=youtu.be Last time I took it to the dealership, they rode forced the tires and did a "pico reading" and dealership stated "it is operating within the specified range" and there was nothing they could do for me. Funny thing is I actually rode with the Service Manager and Tech while doing this test and both of them said they felt the vibration/shaking but it rides better than other trucks. Such horse shit.. This is one of many issues I've had with it since I bought it; FE: replace full exhaust system due to bad flapper, removed "rail dust" in paint, replace mass airflow sensor within first week of purchase, replaced "gateway module" which took 30+ days in the shop. I purchased the truck last November and am honestly depressed I'm even having this issue to which no dealership can/wants to fix. Ive requested specifically requested to speak with a GM rep last time I was there which the service manager said ''I unfortunately don't know that info". You guys are my last resort, so I'm looking to see how I get in touch with the GM Rep to see what options I have before I get with a lawyer. Any help you guys can provide is greatly appreciated.
  18. I want to apologize in advance for the length of this... I just need to point out the details. It’s time GM does something for us who own 2014-2015 models, trucks I’ve dubbed "the engineering guinea pigs" thanks to personal experience and the myriad of complaints in this forum. Good day to all of you. I’m presenting you an issue that is causing more concern to my safety in my truck than holding a gun to my head. Starting this off by stating I made the grand mistake of taking my truck in to get the steering update instead of checking ground connections myself. Doing this update bit me in the ass within a week of getting my truck back. Let’s just say that after I received my truck from the dealership in far beyond worse condition than I sent it in with, I’m getting consistent and far worse problems after updating. My truck shut off on me completely, losing control of steering and everything, while approaching a red light at about 45 MPH...with my younger brothers in the truck. I took it to the same dealership that same day, and they weren’t able to do anything. I was beyond frustrated. I’ve never had any vibration at any speed until my service. Now I’m getting vibration at 70mph. When I lightly press the brake, I’m hearing a rotational sound coming from my left front wheel, my mechanic says it’s the bearing but with our trucks having sealed bearings, I’m going to be looking at an $800 hub assembly. Just this Saturday, I made a 45 minute drive up to Ft. Lauderdale and as I arrived, I noticed my engine was producing a sound almost like a lifter noise, even though the dealership serviced my lifters(or one specific lifter, not clear at the moment as to what it was). When I got back in my truck after a few hours, I had no lifter noise...WTF? This is getting out of hand. Here's the part that has me worried: ever since my update, my volt meter is below the half mark all the time (never happened beforehand) and I noticed that my headlights flicker and dim, along with my dash lights sometimes. When I press my brake and use my turn signals, the lights dim significantly and brighten back up but flicker. With my turn signal, my headlight dims when I engage it and as it blinks, my headlights dim and brighten with the blinks. Just the other day as I was backing up out of my buddy's house, my backup camera froze and I got a "service rear camera" message on the display. I’m so confused, how does an update manage to mess up my truck? I'm beyond pissed. The only good this update did was actually improve the shifting slightly, even though I’m still having that infamous 1st to 2nd rough shift. Other than that, this update makes me want to tell GM to F-off and move onto ford or something. Yes, I’m that serious. I’ve been a Chevy person all my life, the majority of my family owns Chevy's... this is just getting out of control. I've searched up all these forums about this and haven’t found too much. Already have links saved and screenshots of individual posts about all this, but I need more insight. Did I make the mistake of buying a first-generation truck? I’m not looking forward to pursue legal action, which will end up costing me an arm and a leg, on top of that I probably won’t benefit much from it. Realistically, I’m also not looking forward to switching sides just yet. I want to make sure I’ve exhausted all my efforts before I make a drastic change like that. This was my dream truck... and I was beyond blessed to be able to own it, and I had so much plans for it. Now? It’s looking like a nightmare, and I've got the urge to get rid of it. HELP. ME. PLEASE.
  19. I have a 2016 Silvarado LTZ Z71 4x4 with the 8 speed... About 13,500 miles on it and it's started to develop a "shudder" and it's been shifting harder. On cruise control it will shudder at around 1300 rpm with speed staying constant. I've driven it in manual on new roads at 35 MPH and it also shudders around the same RPM range. We're talking about vibration enough to shake the steering wheel. Almost the same effect as driving over bumps in the road. When driving it very aggressively at higher RPMs the issue isn't as severe. Also when drifting, aka letting the vehicle decelerate, the issue goes away. Has anyone had the same issue with the 2016 8 speed? Any solutions? I'd like to have an idea of what the problem is before going to the dealership tomorrow. I bet $100 they'll tell me it's the tires.... Thanks for input, JK29
  20. Hi everyone. Been along time since I've posted about my 2015 vibrator. Well what a story I have for you! I'll make it short n sweet as possible. First the dealership, couple of hiccups but overall really good to me. Second the Gm customer service, very pleasant to talk to......that's all. Third Gm district manager, treated me very well with buyback. 1/16 New 2015 1500 double ltz 6.2 20" vibrated bad from day one! Approx 6-7 months later after 4 sets of tires, alignments etc.. was offered buyback. Ordered a 2017 1500 crew ltz z71 6.2 18" loaded on first order date. ( z71 and 18" highly suggested for least amount of possible vibration problems by DM ) 12/20/16 new truck FINALLY arrives. Stunning, rides amazing. 5/17 4K miles started to notice a little vibration. Could live with it. 6/17 vibration worse, rear end was making odd noise off and on. Rear end locked up several times at very low speeds and just dragged tires. Will leave out all the bs. Rear end was blown. Btw I don't beat on my trucks. GM POLICY.... new model year rebuild only! If 2016 and older new rear end. RFB tires 2 no good. 2 new tires( found out were out of spec to, put on anyways) Rebuilt rear end, 2 new tires truck vibrated worse, rear end made bad clunking noise and all around seemed worse. Didn't want to go through another buyback and was told GM probably won't do it. Traded for 2017 Colorado v6 crew long bed. Surprisingly really like this little truck. Ok you ready.... 207 miles on it, took it on highway, vibrated worse than my first truck. Also noticed whole truck had a slight lean to drivers side. Took service manager for ride and couldn't believe how bad it was. Also measured truck and driver side was shorter. RFB tires, perfect, checked everything, perfect. No bulletins for it. Never had a Colorado vibrate. Nothing he could do about it. Said you got a lemon. He was gonna contact DM. ( I wrote a email to DM in detail of what My family and I have gone through the past year and a half, how much money we have lost, how much stress we have had and to please just give me a new Colorado ) He got in touch with New DM and explained he couldn't fix it, it's a lemon. Definitely should do a buyback. Well guess what DENIED!! IM FLOORED... unfixable truck is mine. Almost traded for another New Silverado but couldn't do it. Lemon law would take to long and they would get me for mileage( which is not cheap ) and I have to drive it. 8/17 traded for a beautiful black 2017 v6 twin turbo crew cab loaded f150. Couldn't be happier. Really impressed with motor, better tow, better mileage, seats more comfortable, all around better. Unfortunately For GM ( not that it matters to them ) I will never buy a GM product again and I will steer anyone who asks away from them. BTW... I personally know several 15-17 Silverado owners who's trucks vibrate, most common said things from them is... Dont have time to bring it in. Don't wanna go through bs. Take the wife's car for long drives. Brought it in got new tires still vibrates. Gonna trade for Ram/Ford. So the number of REPORTED vibration issues means nothing.. lots of people don't have time, don't wanna deal with bs, traded or just don't care. In the past year and a half I've asked approximately 50 15-17 Silverado owners if theirs vibrated. HALF said yes and all at highway speeds. Personally I think they all vibrate on different levels. On the low end response well it's a truck, that's how it rides. It's expected. And don't forget service guys going with you for test ride saying, that's the tires their aggressive your gonna get that. Unfortunately I've heard it all. My Silverado crew rode like a Cadillac until 4K miles. Take no excuses!!!! Thanks for reading and good luck to all.
  21. Hello from Hutto, TX! My husband and I purchased a 2016 Chevy Tahoe (Demo) with a little over 3000 miles on it on February 25, 2017 and at the time of the test drive, noticed a vibration when driving over 70 mph. The sales rep immediately blew it off as just a balancing issue. The sale was contingent upon the dealership repairing the issue so they jotted it down along with other notable requirements not related to repairs. I brought the Tahoe back and dropped it off the following week so they could look at it and have leather installed. The sales rep had called me and told me that it's just a flat spot which is typical from sitting on the lot and that they would air the tires up to 75-80 psi and drive it for 5-10 miles, deflate and everything would be fine. While this seemed odd to me, I let it go; he called me when the vehicle was ready and said everything was fine. Needless to say, I brought it back a couple of weeks later because the vibration didn't go away. It's been in the shop for a total of 20 days - the 2nd time in, they balanced the tires; guess. what? It still has vibration issues; 3rd time back, they replaced the front tires (after doing a picotest); I came in to pick it up and do a test drive, which brought me to the conclusion that nobody actually test drove it, and left it there. They seemed to be a bit surprised that I wasn't going to let it be. Anyway, 2 weeks later and 2 more tires on the rear, then switching all wheels and tires around so they all matched; road force tests, etc. they call me and tell me it's ready to go and guarantee me that it's fixed. Needless to say, it's NOT! After a BBB review and complaint; complaint to GM...I'm waiting to see what the next step is. We did find forums online from owners of 2015 Suburban's, Tahoe's and Silverado's with similar issues. Anyone on here experiencing the same?
  22. I have a 2012 GMC Acadia Denali AWD. Since I have purchased the vehicle 2 years ago, it has had a vibration issue. It seems to vibrate at speeds 60 and over and tends to do it more when accelerating and after sitting for a few hours or more. Dealership thought it was the tires. After replacing the tires right after it was bought, that didn't help. 30,000 miles later replaced the tires again still has not helped. They even took tires/rims off a brand new Enclave and put on my vehicle and it still did not fix the issue (used as a test to see if it was from the new tires and/or rims). Also, the tires that were on the vehicle when we purchased it used, wore unevenly (I think they called it cupping or something along that lines but cant remember). Regardless in our eyes, this vibration issue is causing the tires to wear quickly and wear in an uneven manner. The second set of tires wore the same way. We are now on set number three. The steering wheel also shimmies back and forth (kind of like the tires are extremely off balance or kind of like when your rotors are warped and your applying the brakes). The issue with the steering wheel is not happening when braking so it's not the rotors. Now they did find one issue, the car was almost bouncing up and down a bit also, and they found the torque converter had to be replaced. While replacing the torque converter, they inspected the drive shaft to make sue nothing was wrong with that. The car has had the alignment checked multiple times and the tires have been balanced to the ying yang including road forced balanced at more than one facility. Some of the things I know the dealership have checked are the following: all suspension parts, motor mounts, axles......they even hook it up to a picoscope to monitor the vibration to see if it could pick up where the vibration is coming from. I mean it's almost like your on a 1940's exercise vibration machine the whole time your driving it....your just shaking the whole time your driving it and you can feel it in the steering wheel as it's shimming back and forth. It has been check multiple times over the last two years. FOR THE LOVE OF MY SANITY, CAN ANYONE COME UP WITH ANY SUGGESTIONS......I THINK THE DEALERSHIP AND ME & THE HUBBY ARE BEYOND FRUSTRATED.
  23. Hello all, I have a 2005 Silverado 2500HD Regular Cab W/T. I have been having issues with this truck for quite some time now. Right now I am writing because of a problem with a rough idle that has been getting worse the past week or so. When I come to a stop at a red light or a stop sign the truck can get an extremely rough idle and almost seem as though it is going to bog out / stall. Sometimes I have to throw it in neutral and give it some gas until the light turns green and I can start moving again. Another problem I am having is with starting the truck. Sometimes I turn the key and the truck starts fine. About 50 - 75% of the time when I turn the key it will start to crank but will fail after a second. I can then try again and it will usually start up again no problem. Another problem I am having is with a vibration when traveling at 35 mph and an ongoing vibration starting at about 20 mph - 70mph. The vibration at 35mph is more of a shake / rumble strip vibration almost like there is bubble in the tire. The second vibration is more of a "humming" and I suspect a wheel bearing or cv axle. Some more information: Just last week the message center pulled a message: "Battery Not Charging" and was falling below 14 volts. I just replaced the MAP sensor thinking that would fix the idle but this did not work. Replaced spark plugs about a month ago. Changed out diff fluid Changed out transmission fluid (Full flush & filter) Changed out oil Ran seafoam through engine Ran fuel system cleaner through gas tank So to summarize: 1. Problem with rough idle at stop sign / red light. Very rough idle - almost stalling out - Possible fuel filter, fuel pump, spark plugs? 2. Problem with crank / starting. Will not start on first key turn... takes a second try to get the engine to turn over. - Possible fuel pump, fuel filter, battery, alternator? 3. Vibration at 35mph (Rumble Strip, speed bump vibration / shake) - Wheel Bearing, CV Axle? 4. Humming from ~20mph - 70mph (Very loud around 50 mph when letting off of gas and cruising) - Wheel bearing, CV Axle, Tires? I posted a video of the humming and problem starting at : Thanks for all of your help, Peter
  24. Okay so I trying to track down a vibration at 68-75 mph (no I'm serious) the dealer has already did the road force and force match process and it is better, but not right. Currently my truck has Goodyear LS-2's on it. The dealer has a set of the same rims but with Continental crosscontact tires on them. I watch them upgrade a Tahoe to 22's. the Tahoe has the same NHT towing package and the tires are rated the same in all respects. The dealer said If they try those and I like the ride better we can keep them on the truck and basically do a swap. since my truck has very low miles. I did notice that the vehicles on his lot with higher stock numbers (newer ones) have continentals and the older stock numbers have Goodyears ls-2s. So why did GM change their tire supplier for these size rims (275/55/20) Question is which do you like best Goodyear or continental, and why? the Tire rack compare feature slams the goodyears and says good things about the continentals.
  25. Rumour has it, there's finally a bulletin for the pinion gear that has caused some of the vibration issues.Had mine fixed in 2014.
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