Question about 1999 Jeep Cherokee

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1999 Grand Cherokee cold shifting problem

Only when it's cold, my 1999 Grand Cherokee won't shift into second gear or will only after A: I let up on the gas or B: after it revs past 4K RPM. After a few stop and go shifts, and when it's warm, you'd never know there was a problem. fluid is full and not burnt. any thoughts?
Many thanks!

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  • Anonymous Mar 25, 2014

    Transmission won't shift when cold

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What is happening is your loosing pressure at the front servo. The seal round it is swelling up as it warms up and the problem goes away. The best fix is to rebuild the transmission. If that is not in the budget, there are some cheaper solutions. First you could add some trans tune. Any parts store will have some variation of it. If that does'nt work a very small amount (a cap full or so) of brake fluid should. It will cause the seals to swell. I would recommend,after adding brake fluid, having the transmission flushed after driving the truck 50-100 miles. Hope this helps.

Posted on Feb 09, 2009

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