trans slipping

[irunhighpsi]

well my trans has been slipping since like 2 weeks ago, very bad on cold cold days and cold start ups, it shifts alot better and almost normal when it is warmed up after 15-20 minutes of driving. Otherwise the RPMS just keep climbing and I have to feather the gas to get it to shift to get the RPMS to drop. Somebody said it could be just low ATF...since the fluid expands when warm thats why it shifts and runs better? There is no grinding, etc. I was quouted at 2000$ for a rebuild so anything you guys can input would be great

[97rs4life]

have you checked your trans fluid? Would be a good place to start.

[cam98aro]

check your fluid with the engine cold... then check it with everything warm, if the fluid is on the full line with everything warm, then your fluid level is fine.

[1DangerousV6]

i had the same problem a couple years ago..i turned out to be some TCC valve..it needed to be bored out..i found out it was a very common problem on the 4l60e transmissions..cost $350 and has never been a problem since