Question about 1999 GMC Jimmy

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99 ford taurus shift into overdrive

When i got the car, it had 88000 miles, the trans fluid was pink, now it has 99000 miles, and the fluid is brown, slightly burnt, but when it shifts from 4th gear to overdrive, it has a shimmy and a slight shake and thump (not hard). Will a new filter and fluid help, or does it sound like it needs a new clutch pack or thrust washers, or a valve body rebuild?

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May not but stranger things have happened & for the price of fluid, I feel bad if I didn't try that first.

Posted on Jan 23, 2009


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