2002 S60 2.4t. tranny stops slipping with t stat removed

Spinningcain · Post by **Spinningcain** » 17 Oct 2015, 20:24

Hi I have a 02 S60 2.4t with 130,000 miles on it. It has the shift flares pretty bad. I decided to change out the t stat and found out I apparently need to buy the entire housing. Anyway in the mean time I left it out. I know it will throw a code for this eventually. The strange thing is my transmission issues are completely gone. I drove it alot and it seens to be normal now. I'm just trying to wrap my head around this I can only think that it is cooling the tranny more then it did before. Any thoughts?

Post by **vtl** » 17 Oct 2015, 22:58

Yes, ATF runs more cool now. It will have limited effect, the flare will eventually return. I know this, because V70's bad shifts issue was first gone after external oil cooler was fitted, but in a few months it returned back. Fixed by a reman. valve body.

Spinningcain · Post by **Spinningcain** » 17 Oct 2015, 23:13

Ahh makes sense. I just need to bite the bullet on the valve body. Thanks for the reply

Post by **oragex** » 18 Oct 2015, 11:44

Just thinking, maybe replacing the fluid meanwhile will help a bit. Old fluid has lost it's properties as transmission fluids degrade with heat. Still keeping no thermostat and a valve body job soon in view.

Post by **vtl** » 18 Oct 2015, 14:27

This is out of question, ATF must be clean and fresh all the time.