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Anyone know what this noise is? It's very intermittent. Seems to do it most often between 40 and 50 MPH cruising with maybe a slight up hill. Never does it on coast or heavy acceleration. Very hard to tell where it's coming from. 20190521_191545_001.mp4 2014 Sierra Denali 1500 Crewcab, 5'8" bed 6.2 Litter 3.42 axle ratio about 118,000 miles
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.
Alight, I've received tons of information here but haven't had a question that wasn't answered until now. The rear-end in an acquaintance's '07 Yukon went bad due to wreck-damage; I had the rear-end out of an '06 Yukon Denali with the same gears and a posi unit so and it was a direct swap bolt-in wise so we did it. The only difference was the size of the wheel speed sensor; it was smaller on the '07 then the '06 but they plugged in fine. Now we're getting a wheel-speed code in the truck, is the swap screwed or will a different sensor make it work?
So about a week back i took my truck to the dealer to have them fix the rear end in my truck. It sounded like a half track going down the highway. They had it for two days and ended up replacing the carrier bearings and the seals in it. I took deilvery of the truck last Wednesday and it drove awesome and was super smooth and quite. Fast forward to this weekend i had all the windows open and i was at my parents house pulling into there driveway i could hear what sounded like the gears almost binding while turing into the driveway, my father who was outside at the time also heard the noise. So i took the truck for a drive around the block with him in it also to see if i could replicate it and sure a sh*t it did. It donse't matter if i am turing left or right it dose it either way but only when taking tight turns. Do you think it is something i should give some time to wear in sense i have new bearings or is it going to only get worse? It's pretty ridiculous for a truck with 45k on it that dosen't tow anything heavier then 3500lbs or haul heavy to already have had the rearend rebuilt once and that was after arguing with the service writer that it wasn't my tires makeing the noice. Any thoughts would be appreciated.