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Old 04-05-2008, 07:39 PM
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tblake tblake is offline
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Re: 97 grand prix trans prob.

Check that throttle Boost cable that runs from the trottle body to the trans, sometimes they break and the tranny wont downshift, and sometimes they just need adjustments.

Also take a look at the vacuum line that goes to the vacuum modulator on the tranny. The modulator is located towards the driverside of the tranny. Pull the vacuum line off and make sure its not filled with tranny fluid. If it is all you need is a modulator, which is quite easy to replace.
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