I have a 2000 Montana with 150k on it. I've asked around a bit and no one has heard of this problem: When the air conditioning has been on for 20 minutes or so, the transmission starts slipping. It "clunks" from 1st to 2nd, 2nd to 3rd, and so on, every shift. The problem does not go away after the air is turned off. Can anybody please help me find a solution to this problem?
Transmission/Air Conditioning Issue
- Thread starter Dustinian
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the a/c generates more heat in the cooling system which also cools the transmission fluid. Clunking is not slipping. Does the engine speed increase when hot with the a/c on and not cause an increase in speed, that would be slipping? When is the last time you had the fluid and filter changed in the transmission?