Tranny slipping in hot weather

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  #1  
Old 08-18-03, 05:56 AM
Mojo700
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Tranny slipping in hot weather

My Dad has a '96 Chevy Work Truck with a 4.3L engine, and has been having problems with the transmission slipping whenever it is hot outside - above 85 degrees usually. The coolant temp never gets above 200-210, so the motor is not overheating, but in normal driving in hot weather, the transmission slips at every start. The problem started when the truck had about 50K and it now has 70K. He had an additional transmission cooler added by Chevy 2 years ago, after they tore down the tranny to inspect it and found nothing, and that doesn't seem to help at all. He has had the cooling system flushed over and over, but that hasn't helped either. Nobody at transmission shops or the dealership has an answer for him, they usually just flush the cooling system and transmission, and send him on his way, and he never knows that the problem is not cured until he gets out on another hot day. He shouldn't have to avoid driving the truck just because it's hot outside. And he never tows anything with it. Has anyone else seen this? Or is there a website where I could find a Chevy truck forum to post this? Any help would be greatly appreciated.
 
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  #2  
Old 08-18-03, 06:05 AM
Joe_F
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Have you checked alldata.com for any transmission related bulletins? Start there.
 
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