Regarding the rear spring popping noise. My 2015 Silverado CC 4x4 has done this since the first oil change at the dealership at ~7,500 miles. I've taken it in since then, and of course, the cannot replicate the noise. The truck now has 21,500 miles and about 10 months left on the warranty I decided to look into it further this past weekend. I noticed that the left rear spring top two leafs are out of alignment. The second leaf is touching the factory spring clamp towards the front of the spring. I'm guessing this is part of the issue I'm having. I tried jacking up the rear of the truck by the hitch (didn't get the tires completely off the ground but took the pressure off the springs) and loosened the u bolts to try and align the leafs. I could not get them to budge, even with clamps. I also could not separate the leafs to spray some dry lube in-between the leafs on the rubber pads as I didn''t want to scratch them up and promote them rusting. What is the best way to remove tension the leaf springs to align the leafs, and separate them to spray the dry lube in between the leafs?
HTXSilverado replied to MudPump's topic in 2014-2018 Silverado & Sierra 1500My truck is a 2015. Although you have to trim the piece a little, it worked like a charm. Although not the same vehicle, see this link for where I had to trim / modify the bracket https://gm.oemdtc.com/4002/front-seat-movement-clunk-squeak-click-noise-or-shift-while-cornering-2011-2015-buick-chevrolet From what I understand, in 2015, Chevy tried to fix the issue by welding tabs to the seat bracket where the seat cushion attaches to the front seat bracket bar. it didn't fix the issue. Therefore, the fix is listed for a 2014 only. Modifying the piece per the link above allowed me to use it on my 2015. Obviously, I cannot guarantee that it will work on later years, I think its worth a try for only $6. Its very simple to install just trim with a dremel, clip it on and zip tie it. Don't bother with all the other items in the TSB I posted in the earlier post. BTW - I am not taking credit for this. Just passing on what I found out and tried after my dealer refused to do anything to fix it.
HTXSilverado replied to MudPump's topic in 2014-2018 Silverado & Sierra 1500First post on this site. Thought I would make it a good one. GM has a TSB on this. Look at step 8. The lateral retainer is all I had to do. I did have to trim it to get it to fit around a small plate that is welded to the round bar. There are instructions online for this but I cant find them right now. https://gm.oemdtc.com/1647/pi1183a-front-seat-lateral-movement-andor-click-type-noise-while-driving-2014-chevrolet-silverado-gmc-sierra Rather than taking my truck to the dealer, I chose to buy and install the part myself. At $6, it was cheaper than driving to the dealership. https://www.amazon.com/gp/product/B00TA7TM1W/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1 After 10K miles of the seat clicking every time I turned right, the problem was solved. Haven't heard it in the past 11k miles
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