Update. So the engine went out on July 4th and today I picked the truck up with its “new” remanufactured engine. Giving the dealership some credit for the holiday, it took about 2 weeks to get the truck back- so better than i expected for sure. Unfortunately the next steps the dealership gave me to register the new engine so its under warranty were not correct and its confusing on exactly what the warranty will be on this engine- the website says 36 months or 100k miles, however Im currently at 88K miles, so does that mean ive only got 12k miles of warranty on this engine? Ive reached out to GM to get clarification.
10’s of thousands of k2xx 6l80’s probably had bad thermostats as well. I had one.
I would have never known my thermostat was non functioning had I not been a forum member and known that it’s supposed to open at 190 and level off. Also technicians would never know either because how often do they drive them enough to reach 190 and even notice when they get there.
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