smith462 replied to WireBender's topic in 2017 / 2018 Duramax 6.6L V8 Turbo-Diesel (L5P) Technical DiscussionI have been using Amsoil in my 2015 since new and change it every 10,000 miles with absolutely no issues in 90,000 miles. Sent from my iPad using Tapatalk
smith462 replied to tripleb's topic in 2015 / 2016 / 2017 / 2018 Silverado HD & Sierra HD Accessories & ModificationsLooks good!
GMC-Joey I used painters tape to find my whistling. My dealer was great! When I told them I finally found it, they just replaced the light assembly and all was fixed.
There are numerous threads about this. I do not know how to link them, do a search and you will see lots of possible useful remedies. Hope you get it fixed!
I had that issue. It ended up being the center light assembly.
smith462 replied to rgarza2006's topic in 2015 / 2016 / 2017 / 2018 Chevrolet Silverado & GMC Sierra 2500/3500 HDGreat lookin' Truck!
smith462 replied to skav's topic in 2015 / 2016 / 2017 / 2018 Chevrolet Silverado & GMC Sierra 2500/3500 HDI have averaged 19 MPG in mine. Here is a snapshot of the onstar page
smith462 replied to sjraley's topic in 2015 / 2016 / 2017 / 2018 Silverado HD & Sierra HD Accessories & ModificationsI like them, where did you get them and how was the install?
Just wanted to let everyone know that my whistling noise is gone. I have driven it for a couple of weeks without any noise. Here is a breakdown of what all was done to my truck: Drivers mirror replaced, XM antenna replaced (TSB), VIN identification rivets (TSB), center light assembly replaced. The dealership was always concerned and helpful with trying to find the problem. I am glad it is finally gone and I have a quiet interior.
smith462 replied to skav's topic in 2015 / 2016 / 2017 / 2018 Chevrolet Silverado & GMC Sierra 2500/3500 HDJune 2014 - 22,000
The dealer replaced my center light today. When I looked at it, there was a seal between the light and my cab. When I asked, they told me it was an update. I do not care as long as that annoying whistle is gone. Hopefully after numerous trips to the dealers and numerous items being changed, I am fixed. Only time will tell.
Well the tape trick seems to work. I seemed to have narrowed it down to the center light assembly. I will have the dealer order a new light assembly and that should fix my whistling problem.
XM antenna did not fix the problem. On a recent trip, it was whistling a lot. Stopped at the first Lowe's, bought a roll of painters tape and followed odonnell747's idea and started taping things off till it stopped. Just like odonnell747, I believe it is my center light assembly. I need for it to warm up some so I can be sure this is it. Mine only seems to whistles when the temperature is above 60 degrees. Sorry it has been a while, but the temperature is a factor now.
smith462 replied to CAtaylor's topic in 2015 / 2016 / 2017 / 2018 Silverado HD & Sierra HD Accessories & ModificationsFrom what I can see, looks like a great toolbox
Dealer called me yesterday. Apparently this may be a common problem. There is a notice for the XM antennas. They have ordered a new one for my truck. We will see if this fixes my issue.
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