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#1
08-04-2010, 07:31 AM
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AC causes shifting problem
My 99 Caravan 3.0 runs fine except when the AC is on. It runs fine sitting at a redlight, but I have to turn it off while accelerating, otherwise it doesn't want to shift normally, it always wants to stay in a higher gear. Once I am up to the speed I want (35 or 65), I turn it on and everything is fine.
Any ideas? Idles fine, runs fine, just doesn't want to accelerate like it should. This happened a month or so ago, it seemed to fix itself for a couple of days last week, and now back to the same crap. 
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#2
08-05-2010, 02:43 PM
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Re: AC causes shifting problem
That's an odd one. Since it's intermittent I'd suspect a poor connection somewhere, possibly at the Transmission Control Module (TCM) and eliminate a module programming issue. You might consider having a tranny shop connect a transmission specific scanner and check for tranny codes. Other than that I'm scratching my head especially with no other symptoms. Keep us posted.
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**We took the time to answer your post. Please give us some time and post the fix. It will help hundreds. **Follow prescribed safety practices before attempting any procedures. Doubts? Consult a maintenance manual. 07 Fusion / 06 RAV4 / 06 Accord / 96 Gr Caravan
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