Wayne Edward

I have a 2016 GMC Sierra SLT and went through the transmission shudder back in 2019 and the dealer did the flush at no cost to me now I had to go back this week for a P0711 TFT sensor / harness failure. I presented the special coverage # N192291660 to the service tech and he noted that this did not apply to the 5.3. When I asked him what is the difference we are talking about the 8 speed auto transmission the same as in the 6.2 to which he agreed. I called the division number for GMC 1-866-996-9463 and was told that there was a certain range of 6.2's that had this problem which made no sense to me what does it matter what size engine 5.3 or 6.2 and is beside the point. One thing for all GMC owners to keep in mind is that the average temp should be around 180 degrees plus or minus according to the load on the engine. I would suggest that if you are observing 135 degrees like I was should have brought this up before my warranty expired 6 months earlier this year, my bad. Anyhow I registered my complaint with the dealer and the GMC contact line.