Jump to content

Recommended Posts

Posted

I just had a wild idea. Does anyone here have access to a dyno machine? Put the truck on it, take it up to speed and see if the vibration persists, then try it in 4 wheel drive. Id be easier to get a camera under there with the truck on a dyno.

Posted

My 2014 GMC Sierra SLT shakes/vibrates when I tow my travel trailer. It has done it since new when I took it out with only 150 miles on the truck. If I ease into the throttle you don't notice it but if your start from a dead stop and hammer the throttle it will shake through the firs few gears. Other then that issue I don't notice a shake any other time. I am hooking up my 27' travel trailer in the morning and have an appointment with my dealer to check it out. It is definitely something related to the power train. If I never towed I wouldn't have know about the issue. I let you know what they say.

Posted

Well, after my buy back of my 2014 c/cab sierra all terrain I bought a Ram eco diesel truck.

My ram is at the dealer for a small paint defect repair, and they rented me a vehicle which happened to be a 2014 suburban which has a shudder and moan, and slight vibration at 40mph-55mph like my truck had.

This suv has the 5.3L v4 fuel mangement and 6speed with 3.42 gears?

With out a doubt I am convinced this problem is the transmission torque converter or pump or the out put shaft bearings.

This is why GM not willing to admit there is an issue, while they quickly roll out their 8 speed trannys.

Just my humble tech opinion.

Posted

I just had a wild idea. Does anyone here have access to a dyno machine? Put the truck on it, take it up to speed and see if the vibration persists, then try it in 4 wheel drive. Id be easier to get a camera under there with the truck on a dyno.

Guys have mentioned this before but I'm not sure if anyone has actually tried to diagnose the vibration/shake on a Dyno.

Posted (edited)

Well, after my buy back of my 2014 c/cab sierra all terrain I bought a Ram eco diesel truck.

My ram is at the dealer for a small paint defect repair, and they rented me a vehicle which happened to be a 2014 suburban which has a shudder and moan, and slight vibration at 40mph-55mph like my truck had.

This suv has the 5.3L v4 fuel mangement and 6speed with 3.42 gears?

With out a doubt I am convinced this problem is the transmission torque converter or pump or the out put shaft bearings.

This is why GM not willing to admit there is an issue, while they quickly roll out their 8 speed trannys.

Just my humble tech opinion.

I haven't seen any 2015 6.2L 8 speeds available for purchase but there's definetly a lot of 2015 5.3L 6 speeds with 3.42. So their not rolling them out that quick.

If you go to carsforsale.com you can view almost every new vehicle on any lot in the US.

 

Edit: I also believe it to be the transmission in many of these trucks.

Edited by 15LTZZ71
Posted

I just took my sierra in today to the dealer for the vibration problem,just got it back from dealer last week for the same problem plus a few other issues. I went for a ride with service manager and got about 3 blocks away from the dealership and he said ok thats good enough take it back to the dealership. My truck was built 7/13 so its an early build and you sure can tell after a five minute ride in it. Im gonna give the dealership one more chance to fix this vibrator with wheels then I will have to take this further.

Posted

I just took my sierra in today to the dealer for the vibration problem,just got it back from dealer last week for the same problem plus a few other issues. I went for a ride with service manager and got about 3 blocks away from the dealership and he said ok thats good enough take it back to the dealership. My truck was built 7/13 so its an early build and you sure can tell after a five minute ride in it. Im gonna give the dealership one more chance to fix this vibrator with wheels then I will have to take this further.

 

I hope they treat you proper, and make things right!

Keep all paper records each time, and keep a log book of notes of attempts to resolve your issue.

Good luck mine didn't get fixed no solution found bought back.

Posted

I hope they treat you proper, and make things right!

Keep all paper records each time, and keep a log book of notes of attempts to resolve your issue.

Good luck mine didn't get fixed no solution found bought back.

I have 14k worth of dealer installed up grades on my truck so they need to fix it. Im not gonna lose my a** cause they cant figure out what the problem is.

Posted

So the technician said there is defiantly an issue and he is talking to GM engineers before proceeding. He thinks it has something to do with axle wrap, the driveline or the rear end. It only shakes when I have a load on it and accelerate hard through first and second gear.

Posted

I picked up a 2014 silverado custom sport last month. 5.3 L - 3.42 rear. It came with polished 20s and Continental Crossconnect eco plus tires. After about 500 miles I notice a vibe in the steering at around 75 mph. Not real bad but it's there. Also cruising around local I sometimes get a vibe in the steering but not always. Most of the time the truck feels smooth. I only have 1200 miles on the truck so I wanted to see if it get worse or better. Also, was wondering if any one else is running the Conti's and if your getting any vibration with them.

Posted

I picked up a 2014 silverado custom sport last month. 5.3 L - 3.42 rear. It came with polished 20s and Continental Crossconnect eco plus tires. After about 500 miles I notice a vibe in the steering at around 75 mph. Not real bad but it's there. Also cruising around local I sometimes get a vibe in the steering but not always. Most of the time the truck feels smooth. I only have 1200 miles on the truck so I wanted to see if it get worse or better. Also, was wondering if any one else is running the Conti's and if your getting any vibration with them.

What the heck are "Eco plus" tires? Low rolling resistance or something? Somewhat of an oxymoron with heavy 20 inch diameter rims.

Posted (edited)

Reading all of this (not really, but I did read a lot) reminds me of a 2000 Silverado I had once. Took me almost a year to get the dealership to replace tires on it. Shaked like the dickens at highway speeds. Turns out it had 3 out of round tires on it. 3!!!! Goodyears.... The first time they finally replaced, they did with Goodyears, and it still shook. Then I got firestones (off brand named versions) and it drove like a dream from then on.

Edited by Nargg
Posted

I have 14k worth of dealer installed up grades on my truck so they need to fix it. Im not gonna lose my a** cause they cant figure out what the problem is.

 

I assume "they" is the dealer as GM is not responsible for non-OEM modifications (even if done by an independent dealer).

Posted

I love the looks on my truck just hate driving on the freeway. Should have not bought it.

Posted (edited)

I have 14k worth of dealer installed up grades on my truck so they need to fix it. Im not gonna lose my a** cause they cant figure out what the problem is.

right before your arbitration hearing they will call you and offer a full purchase value trade-in credit towards another truck and you pay any additional cost if its a higher price.

 

at that time you can make a deal for them to transfer all your upgrades to the new truck and I would "assume" they will absorb the labor cost but then maybe not and you will have to pay the labor but that's still a decent deal.

 

short of that its up to you to remove everything yourself and then sell it or buy another truck you can use them on.

 

you are not going to get a penny more from GM then the cost of the truck the way you bought it in stock condition, consider the rest lost money unless you can remove it without leaving any damage to the truck from removing it because scratches and holes and anything else will all be depreciated at full retail body shop repair prices.

Edited by keakar

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Latest Articles

  • Posts

    • not all plugs will be used.  gm uses more generic harnesses that support most/all options, and if your truck doesn't have a specfiic option, the plug won't be used (commonly will have a dummy insert in the plug , or it'll be taped up, but some may just be left as is).  But it's sldo possible some p.o. has installed the wrong/cheaper parts that aren't correct for your vehicle...
    • First off, I'm not trying to just get easy advice/fixes for the issues I've noticed so far.  I'll be combing through the site via searches and such, and if past experiences are any indication, should find what I need.  For the sake of conversation, though, I figured I'd post the handful of things I've noticed in the 12 hours since buying my 2010 SLE CCSB.     Indicator lights: Airbag and TPMS.  The tire pressures aren't reading for any of the wheels, so I'm pretty certain the sensors were either removed, are damaged, or are otherwise inoperable.  I used to mount and balance tires 25 years ago but am pretty much ignorant when it comes to TPMS.  My 2006 didn't have the sensors and this might be the fourth vehicle I've owned that does.     Radio: Rear speakers aren't working.  I removed the driver's side rear door panel and checked the speaker and wiring.  I also removed the sill and b-pillar covers to check the wiring.  A few minutes of Google Fu showed that this is potentially a head unit issue.    Switches: Power mirrors don't turn left/right.  I ordered replacement driver's door switches that should arrive tomorrow.  The windows and locks work but it was only about $20 for all of them.  The driver's side rear window switch lets the window down but won't put it back up.  I think the passenger rear doesn't work at all.  In the coming days/weeks, I'll break out my multimeter to check all of that.   Unknown wiring harness: There's a box attached to the front driver's side of the engine compartment, right where the second battery shelf is located.  There are three plugs, one of which looks like it fits a standard headlight-style bulb (9007 or similar).  It doesn't look like it's plugged into anything.  I'll do some digging and if I don't see anything elsewhere on the site, post some pictures here.   Unknown plugs on brake booster: There are at least two female plugs on the brake booster that aren't being used.  I think it might be a replacement/aftermarket, so maybe those are used for a different application, as there don't seem to be any unplugged harnesses and no indicator lights are on.   Little squeaks when turning: Sounds almost like a bushing around the bed of the truck.  I'll have to pay close attention as I get more familiar with the truck.   Clunk on acceleration: possibly the infamous drivetrain clunk.  My 2006 had it and I'm just not familiar enough with this truck yet to fully grasp what it is.   Anyway, my apologies for the vague and all over the place post.  This truck is new to me, and it's been four years since I drove my 2006.  With 200k miles, I know I'll need to learn this truck quickly to avoid having any major issues, despite being confident it's got much more life to it.  My 2006 had nearly 320k on it when I parked it (nearly 300k of which I put on the truck), and it was still drivable then, though I suspected the head gasket might have blown.  I'd hoped to have that truck back by now, but it's gone forever, as I detailed in my reintroduction thread.  
    • I always drive in Sport mode. With more driving, I am finding the initial response when accelerating is much quicker now🖕 Lou
    • Is it an optical illusion in the pic or is the truck really squatting that much horribly?
    • My initial introduction was here.  It's hard to believe that I last posted in February 2013, having just deployed to Kyrgyzstan.  Since then, I've retired from the military and the 2006 Sierra SLT Z71 that first brought me to these pages was lost.  I went forward to Afghanistan in March 2013 and did a lot of sitting behind a computer on brigade staff.  Within 18 months of getting back to the States, I was selected for Drill Sergeant duty, after which I moved back to Virginia (my home state and where I served from 2004-2008).  That '06 Sierra did a lot of driving between Louisiana, Georgia, and Virginia, and ended up with nearly 320k miles by 2022.  By then, the registration had been expired for a couple of years, but the pandemic had all but eliminated tickets for such transgressions.  Admittedly too, I usually drove my wife's SUV or son's car the 2-3 times a week I had to report to work.  Teleworking sure was fun while it lasted.   I started my retirement leave four years ago and stored the Sierra at my sister's house.  A big mess was made when her fiancé passed while she was taking care of business out-of-state in late-2024, and his son pretty much mismanaged everything to do with the estate.  Even so, I was assured that my truck was safe... until it wasn't.  I found out that my truck had been scrapped about four months after the son took over everything.  There's nothing I could do; I'm 1000 miles away and it was technically abandoned property since he'd even trespassed my sister from her own house (she had no claim to it as she wasn't married, and the fiancé was the sole owner).     Anyway, today I got my second Sierra.  This is a 2010 SLE 2WB CCSB with a little over 200k miles on it.  It's got the 5.3L I'm familiar with and should handle what I need it for.  Hauling stuff that won't fit in the Transit Connect (yep, I sold out, but that's the wife's vehicle) and towing a few times a year tops.  The price seemed decent, considering how much people sell their trucks for in the Deep South: $4500.  I've seen similar trucks listed for more than double that.  I got it from a coworker who left his tag on until we transfer the title next week (Louisiana requires a notary for transfers), so I've been driving it all day.  The rear speakers don't work, which is one of the things that brought me back to these forums earlier.  I can't say how active I'll be as a poster, but I'll be scouring the archives while I find out every little thing I can about the 2010s and particular nuances/problems with my truck.   It's definitely not a GMC, but I got another Willys Jeep a few months back as well, so I'm almost at the same place I was when I first joined gm-trucks.com.  My old 1960 DJ3A was sold back around 2010 or 2011; my current Jeep is a 1946 CJ2A.  So, I've got a slightly newer GMC and a much older Jeep.  I kind of wish I still had that F-250 I had way back when too.  The Dakota is long gone and was technically my brother's truck, though I had it registered and insured.  The F-250 had to go when my grandmother's house was foreclosed on due to mismanagement around 2012 or so.     Hopefully anyone that made it this far isn't too annoyed.  I tend to be long-winded, but I'll be doing more reading than posting in the coming months.
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...