Quote:
Originally Posted by GA_ZL1
I had a GM tech do a ATF change recently on my 2023 ZLE A10 after the recommended 15 hours of track driving. The next time on track (yesterday at Road Atlanta--it was hot), I started getting some funky shifting, which makes me wonder if the bleed was done correctly. I wonder if there was too much ATF in the pan and hence I was getting overheating. According to this forum and a video recommended by ZL1 owners ( https://youtu.be/dPrP4NQZg6w), the AFT should be between 203-212 F before removing the bleed plug. Is that correct? My car has the the OE tranny pan still in it, so I presume that the bleed post inside will give me the proper "track level" for ATF. Right? Does it make any difference what driving mode the car is in when the tech is bringing the fluid up to temp and doing the bleed? Should it be in "Track" mode? Anything else I should discuss with my tech to make sure the AFT was changed properly and the level is set properly for track driving? FYI, I drive in the Competitive Driving mode in Track at the "Sport 2" setting, which was the case yesterday. TIA! |
That's is exactly why I'm afraid to take my car to service especially at a chevy dealer. I bought a extra pan to have a bung welded-in sonits easily drained to replace the fluid and the filter.