- Transmission/Drivetrain Sponsor
nitro wrote:It's good to hear that your fluid was off. But from the sound of it, it may be to late. If i understand your post right you said it was fine in the cooler weather, but got worse after it warmed up outside today. Sounds like the trans is slipping. So when it warms up the clutchs are slipping and not allowing it to go into overdrive. 4.10 gears wont have any effect on what your explaining is wrong.
So first question is do you have a tranny temp gauge.
Second if so what does it read when its not going into overdrive.
Third try putting it in to third gear and drive around. You should be able to watch the rpm's drop by 100 or so when you get to cruising speed between 30-40. That will tell you if the TQ is locking up.
GM does not have clutch bands to adjust. Thats because they can build a trans right the first time unlike ford and dodge.
Hope this helps you.
I did a little searching online, and some people have had similar experiences with this, but they had other symptoms- missing a gear, or hard shifting, things like that. My problem is there aren't any other problems- it shifts like a dream, and there aren't any tranny-related codes. The tranny temp gauge doesn't move much at all on the freeway, regardless of speed. The only time (in the winter) that I can get it up to 190-200* is in hard city driving. I think it's obvious that something's wrong, but I don't want to hand it off to a mechanic who charges $100\hour to diagnose it all day long. Hopefully I'll find something soon... thankfully, there aren't any other issues with it (right now, at least ).