1990 Buick lesabre when cold transmission slips 2nd going to drive when it warms up it becomes better
4 Answers
What color is the trans fluid? Have you replaced the fluid and filter lately? If not might be time to do that.
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and after a day or two drain out some more through the filler tube. Do it once or twice until it's nice and red......don't let anybody tell you that a drain and filter won't help. It may not work but it's a cheap first step.
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P.S. don't put any stop leak in but a pre-draining condition a few miles ahead of time is ok.
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I have found that adding a can of CTC really helps older transmissions.
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