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Found 291 results

  1. I sell, fabricate, deliver, install and train workers how to use my packaging lines. In 2015 selected 2500HD WT 6.0 as the platform to use as my office (Truck Camper) and and tow vehicle. It provided great HD service and economical (per mile basis). On a trip to OR noted a resonance with my thumb on the steering wheel, when engine load changed going over an overpass. At first I thought it was roadway groves, but the rhythmic vibration stopped when manually dropping into a lower gear, increasing to 3000 RPM's. Not willing to chance break down north of Mount Shasta, returned home, switch vehicles and headed north. Upon return the rebuild search began. Deep dived into transmission repair cave and almost selected a remanufacture unit from Certified Transmission but learned shops are under no obligation to use their products and there's limit participation on the left coast. Most shops refuse to install a third party transmission citing warranty issues. Finally settled on a local shop in West Sacramento that rebuilds your transmission to the level you want. As a bonafide cave dude wanting to understand the how transmissions work, why they fail and how to repair, called (late Friday) Pro-Built Transmission and spoke to Don the owner. I outlined in detail what the problem was, and through a series of questions from Don about the trucks' service history and how I use it, he was confident what the problem was. Arrived two hours late from my Monday 8 am appointment, Don pulled me through (no signage stating for insurance purposes you can see what we're doing to your ride gate) his shop showing various components, their failure points and although the 6L90 is a simple transmission pointed out common failure points. He showed various 6L90's requiring rebuild, some under 60K miles, and could not believe mine made it to 194K. I relayed after the first transmission filter change, started pulling 5.5 quarts out and replacing every other oil change, in other words, a poor man transmission flush. My reasoning was pay 25 dollars instead of $250 for a complete flush. Don smiled and said that explains it, noting above all else, fluid change saves transmissions. Satisfied Don wasn't a hack, dropped off the key and within an hour, after a test drive and noting data stored in in codes sent me this. I knew it was bad and knowing a bottle of shudder stop wasn't gonna fix this, authorized repair. With high mileage, I asked about universal joint replacement, Don relayed he had a shop that could replace joint, balance the driveshaft and check the center bearing. Also since transmission was removed, and although showing no signs of leakage, had him replace the rear oil seal as well. Don pulled the transmission and confirmed what he suspected, torque converter friction plate failure. The metal on metal grind produced fine grains that worked its way pass the bell hosing bearing and through the pump. Damage continued through the valve body and solenoid pack (TCM). Solenoids contaminated Note the metal grit in the screen on the right. What was unexpected was the metal grinds didn't make to the clutch packs. After 194K miles, 90% were still serviceable with some showing wear on the outer ring. What's interesting with GM is, instead of applying full pressure to the clutch plates, they control the amount of pressure applied. The black rubber ring on the piston drum engages the plate outer section. This accounted for the most wear on the clutch plate. Don showed how the replacement piston drum engages the full surface of the plate; provides a sharper shift and lowering the wear. THE FIX. Drive shaft showed the center bearing was bad and was along with universal joints replaced. Don sent the pump face (forgive if I don't name the parts correctly) to be machined smooth (8-9 thousandths). He switched solenoid rods from alloy to steel, and spoke about the OME cost. Chevy spends perhaps 50 cents on alloy rod where as three steel one cost him $80.00. He installed a new pump and higher valve pressure components. Here's a picture of some parts replaced in my 6L90. Don sent out the torque converter to another shop. They split it open and here's the condition. Don then explained his vendor replaces the back half (part the friction ring presses against) with a thicker (1/4 inch instead of the 1/8 inch) material machined from a billet. This handles heat better and prevents the converter material from warping. They also flash braze vane tabs to prevent movement (picture of open converter is not mine) If you get a good shop and can wait four days, one can retain the original unit and get upgraded parts. Note the remanufacturing industry is designed for a quick turnaround for transmission shops. They cite a higher level of expertise, however the reality is they created a process based on volume allowing a price point favorable to the transmission shops. Nothing wrong with that and note I wanted to retain my original transmission. Programming Invoice. Yes its high, but keep in mind two other shops were involved, addition work was completed and Don took time to educate me on the transmissions, AND its a tax write off. In the final analysis and under heavy duty conditions, if you have a 6L90 strapped to a 6.0 and do fluid changes, your transmission will survive to 150K miles. If I had a better understanding of transmissions when observing the gray paste material surrounding the pan magnet at the last transmission filter change, I could minimize cost with just a torque converter change. As for this repair, (most expensive during ownership) it cost me .0229 per mile. This and the top end rebuild posted earlier, gives a total cost of $5944.85, (.03 cents per mile) returning my truck to service, hopefully getting another 150k miles. Test drove my truck and report shifts are crisper with the only change being when going over overpasses, and sensing the torque change, rpm will drop 25-50 rpms and return on completing the elevation change. Next week I'll go up the Grapevine with a 4k pound truck camper and report how she does.
  2. Total system shutdown

    60656 miles. The truck completely shutdown while in motion. All electrical in the vehicle shuts off for 1 sec and restarts. I have taken the vehicle to the Chevrolet dealer and addressed all recalls and bulletins. This issue continues to happen every 3 days. I have called the manufacturer and discussed this potential life threatening issue and was told to take it back to the dealership. Does anyone know how to resolve my problems?
  3. I am having problems with my air conditioning again. My A/C is blowing warm air and this is the second time I have had this problem since buying my 2015 Sierra less than 6 months ago. A few months ago I had the exact same problem and my dealership diagnosed it as a leaking hose and all of the freon was gone. They had to order a new hose and it took a week for it to come in. They installed the new hose and added more freon and it has been fine for the past 3 months until today. This morning I noticed that the air coming out was warmer than normal even though I have the A/C set at 65 degrees. It was fine yesterday. I am going to monitor it and see if it gets worse and if so make an appointment to take it to the dealer again. Just wondering if anyone else has had to replace the hose or had a freon issue with their 2014 or 2015 Sierra / Silverado?
  4. I am having issues with my brand new 2015 GMC Yukon Denali. I was so excited to get this new car. It had a leak in the back right rear window from the start. They had to replace the entire headliner in the interior. Now I've got a shiver when in idle both in gear and out of gear. It feels like the car needs more gas. I've taken it into the shop 3 times now. The service department, after listening to my complaint and acknowledging the shiver, ultimately states that the car is "operating as designed". I've test driven a 6.2 liter Denali that does not have this issue. They've stone-walled me at GM, essentially saying they can't fix a problem that doesn't exist. Has anyone else had this issue? You would think that a brand new car wouldn't have this issue, and that they could do something to fix a rough idle. I'm beyond frustrated. I'd love to hear if anyone has the same problem.
  5. So I was all settled on installing the Fabtech 6” basic lift then the 4wheelparts guy tells me Pro Comp is running a $500 rebate on the 6” coilover kit which is usually $2400, now $1900. The Fabtech kit w/ their stealth shocks and front spacers was $1600 something. Should I spring for the upgraded coils? Vast ride improvement? 85% on pavement driving occasional off road for hunting/fishing thanks
  6. I currently have the little 4” screen in my truck and was wondering if anyone has tried to go get an 8” screen and HMI out of a and junkyard truck and plug it up. Would that work? I dont feel like paying $1500 for something to still be stock
  7. I have a 2015 Silverado Crew Cab LTZ and I keep finding the passenger front seat belt being wet after it rains. I've also seen water dripping from the passenger side of the upper center console (pic attached). I've already had the OnStar antenna replaced but it's still happening. Has anyone see this? Any ideas?
  8. Recently bought a 2015 GMC Yukon Denali and the GPS is showing me in a different state. How can I Calibrate the GPS. I am trying to find it in the manuals but am having trouble. Thank you.
  9. So i had a dead battery the other day i went to take out the battery and get it charged because they told me it was still good, so when i put the battery back on the truck and went to start it the screen would stay black . I have tried disconnecting the battery and connecting it back (negative first then positive) , i have tried taking the fuse in and out for the radio, and i have tried moving the connections under the cabin filter. Please help thank you
  10. Hello, I am desperate for any assistance that can be provided for our situation. We are US military stationed in Germany. Our 2015 Sierra recently threw the p21dd code. We ordered the replacement reductant tank and installed it ourselves. The engine codes were cleared but we are still getting limitations on our speed and distance. We are stuck at 88kph/80km until we drop down to 6kph. In the research that I've done so far, it seems we need a manual regen done on the truck in order for the limitations to go away. This is where we are having the biggest issue. GM will not assist us in any way because we do not reside in the US. They constantly revert us back to the German GM entity and I've lost all hope in trying to communicate with them. We have been hung up on more times than I can count because we do not speak German. So, is there any hope for fixing our vehicle before it goes limp? If we can't get it fixed, we don't know what we will do as we cannot sell it in this state, we can't ship it in this state, and we definitely can't drive it. We are struggling to find a light at the end of this tunnel and would greatly appreciate any help available.
  11. I have some items/ parts I no longer require or desire. Would love to get them out of my garage. Everything is off a 2016 Silverado 1500 Z71 LT Crew Cab Short Bed. - Bed caps - Headlights (no harness) Continued:
  12. I bought a 2015 Silverado 1500 lt double cab 5.3L V8 4x4 with 12,000 miles on it a couple months ago. It now has just under 20k miles and when I went to check the oil there where metal shavings on the end of the dipstick. Concerningly big metal shavings. I brought it in to my local GM dealer and they told me that it's from the dipstick scraping on the dipstick tube. They didnt run any tests on it they just drained it and looked in the oil itself and didnt find any shavings (so they said). Which sounded a little shady to me so I started looking to see if anyone else had this problem and I found a few cases similar but not enough for me to come to a solid conclusion. The pickup runs great and I dont hear or feel any problems but any insight would be greatly appreciated. I thought about sending a sample to be tested myself but I dont know of any good company's near me that do it. Any recommendations on that would great too. Thanks
  13. All - I have for sale the Borla Cat Back Exhaust in Touring Edition: PN 140535 on the Borla website. I had this installed new from the factory, the Touring is a fantastic, rumble... I would call it just the right amount of deep sound. You won't believe how nice it sounds over factory exhaust until you try it. It is in great shape (almost like new) as you can see from the Pics, I polished the tips and the muffler to show you just how clean it really is. The rest of the tubes were left as is, since you will be installing it and getting it dirty anyway. I live in South GA for Pickup, 30 min north of Tallahassee. Price is $800 if I ship it, or $700 local pickup. Let me know if you have any questions ! Link to Hear the sound: https://www.borla.com/products/silverado_sierra_1500_catback_exhaust_touring_part__140535.html
  14. Hello all, I have been considering getting mud flaps for my 2015 silverado as I am tired of mud, dirt, snow and rocks getting tossed up onto my paint. I am just wondering which mud flaps people on this forum have been using. I have taken a look into the oem chevy ones, weathertech and also rekgen. If anyone has added these to their vehicle please let me know your opinion on which style mud flap you have used. I am looking for ones that are more of a kickable style. Any help is appreciated
  15. So I have a 2015 Chevy Silverado 1500 LTZ Z71. Im looking at swapping my stock mirrors for aftermarket tow mirrors. My stock mirrors have all the functions, power folding, heated, turn signal. I have found a bunch of tow mirror set ups that have the reverse light in it and running light/ turn signal, but they do not have the power folding functions. Will this affection my computer and throw a code getting the ones without power folding function or affect anything? I read some reviews that say it could but others say ill be fine.
  16. Last night I found my passenger side carpet saturated with water in my 2015 Silverado 1500. I lifted the carpet up and found the underlay soaked and a pool of water in the floor pan. After searching the internet I found this is a common problem with many potential sources. The shark fin antenna, leaking seams behind the front fender, through the firewall, and from under the cowl by the windshield wipers. I don’t think mine is coming from the radio antenna or from behind the fender as it is running straight down the firewall from behind the glove compartments. It is raining steady here today and my truck has not moved and it is a steady stream running from behind the glove box. Does anyone have pictures or a better description of where I should be looking on the firewall or under the wiper cowl?
  17. Sierra DeMod Sell

    So finally have everything off of my truck and pics of everything. Prices are obo plus shipping. If post not allowed please let me know and I will delete. Thanks. - RX Speedworks catch can with check valve and clean side separator. Has the OEM connectors for the PCV connections - SOLD - UPR Catch Can with check valve and OEM connections. Only had for about three weeks. - SOLD - Superchips F5 GM Flashpaq handheld tuner. Primarily used to turn off AFM and adjust for tire size. Has pre-loaded tunes and able to change parameters such as gear, AFM, speed limiter, etc. Comes with original box and manual - SOLD - 2014 and up OEM crew cab undersea storage. Prefer not to ship this item but will at buyers expense. But will meet if you are near Augusta, GA-Atlanta, GA-Columbia, SC - SOLD - Volant CAI intake 5.3L. I removed the filter it came with and upgraded to a RotoFab dry filter. Comes complete with everything you see and OEM connectors. Would make deal with someone if they wanted this and the RX Speedworks catch can as the clean side separator would work with it. - SOLD - Doug Thorley Tri-Y headers. Will work with 5.3L and the 6.2L ecotec3 engine. However if you have the 6.2L the connection at the fatback needs to be modified. $600.00 - GM OEM Rosen DVD Headrest AV-7950H 8K-GMCHEV-B38-S1. The primary headrest is the DVD unit while the secondary headunit has the USB input and iPOD docking station. Has built in video games and will come with four headphones(two brand new never used), two video game controllers (new just tested), the accessory wires if you wanted to add a video game system or something along those lines. Im at - SOLD on these will not separate. Selling the whole kit. Thank you for your interest.
  18. First post here and I wasn't quite sure where to post. This isn't really troubleshooting because we know what is wrong, I'm mainly wanting to know if there are large scale issues regarding this and how do we get in touch with GMC about it as our mechanic isn't much help at this point other than charging $1100 to fix it. We bought a used 2015 GMC Yukon last year with 20k miles on it. A month ago, the Side Blind Zone alert on the side mirrors came on and have stayed on permanently, even when the car is turned off. Because of that, it drains our battery when the car is parked longer than 2-3 days. I took it into the shop a couple of days ago and we find out that the box that houses the sensors, in the right rear quarter panel, had become detached and was dangling close to the exhaust pipe. Because of this, it totally melted the box housing the sensors. The mechanic tells us that the sensor box is only glued in and can become detached easily. This is costing us $1100 to fix because the sensor is over $300, and then labor for the past 2 days to get it back in place. Is there a thread in here from others who have had this issue? Is this a wide spread issue? Should GMC pay to fix this and if so, what are my next steps? Thanks!
  19. I have a 2015 Chevy Silverado Work Truck 4wd with the 5.3l V8. On my truck, I have a manual transfer case on the floor similar to older trucks. All of a sudden my 4wd light on the dash will come on and my truck starts whining and grinding like it wants to go into 4wd. My shifter for 4wd is positioned in the 2wd position, and the light is still on. I can put it into 4wd and then back into 2wd and the light will go off and 30-60 seconds later the 4wd light will be back on. Now even when I turn it on sometimes the 4wd light comes on immediately. Has anyone else had this problem? If so what did they do for repairs? Anything helps
  20. Hoping somebody might want to trade their dark slate metallic paint matched grill, pictured below in that dealer photo, for my chrome one! Mine is in perfect shape with only 5700 miles on the truck. I like having a little bit of chrome like on the bumper and the middle portion but having the grill edge paint matched would be perfect for me. I live around Santa Cruz, CA, just in case somebody is local to me. Thanks for any interest! 87C241E6-8C9E-449E-AAAD-B47C48883946.jp2
  21. Is there a way to tell if a 2015 Silverado LTZ came with factory HID bulbs? I got a used LTZ that has factory projector headlights but the bulbs in it when I got it were halogen. I’m trying to put LED’s or HID’s in and want to do it as easily and cheaply as possible.
  22. Surely someone must make some nicer looking/dressed up coil cover/valve covers for the new style engine by now? Can't find a thing online. Would be nice to spruce things up under the hood a bit with some chrome or carbon fiber or just something different. Anyone spot anything anyplace???
  23. 2015 Silverado, 5.3 Gas with just under 34,400 miles. I've just started noticing that ??burnt oil?? smell after starting the truck up. Usually after sitting all day at work, or overnight in the garage. Only way I can describe the smell is by the 2003 Silverado I drove at work for years that ended up having a new engine put in it. I don't see any puff of bluish/white cloud on startup. Only noticed it like in the last week. Usually I'm either remote starting it when it's cold out or getting in and starting it up. So I never smell it. It's only 16 miles round trip to and from work with many more stop and go's than miles. It only had just under 11k when I bought it in Aug 2017. So what, 23k in 18-19 months. It runs smooth, idles smooth. Should I worry about it? The way things have been going lately, it would be just my luck to have a screwed up engine.
  24. Looking for a passenger side LTZ style headlight for my high country. Anyone have one with all tabs in place in good condition? Thanks, Keagan
  25. I have 2015 Sierra, Power steering went out while driving last Wednesday June 15th, towed to closest dealership. On-line recall GMC 14743 for Steering electronic power assist system. does not cover my VIN...anyone else have power steering issues?
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