why a tranny works only when the truck is cold temp ?

Asked by May 04, 2013 at 12:11 AM about the 1999 Chevrolet Silverado 1500 3 Dr LS 4WD Extended Cab LB

Question type: Maintenance & Repair

transmission works good until it warms up , it does nothing after that (temp neddle get to
normal temp), does anyone knows why?

7 Answers

28,185

fluid is thick when cold. when its warm its probably bypassing a seal that it couldnt bypass when it was cold

100,085

Does it have enough fluid?

1 of 1 people found this helpful.

evrything is normalwhen is cold, n fluid is good , may be a bad TCU ? u know like hondas have a bad main relay that as soon they get hot they start acting up

28,185

Still think you have a internal issue

it willneed to be replace? how much that would cost me? or an idependient oil cooler would help?

28,185

I think it will need to be taken apart and see what you can find. It would be cheaper than replacing it. I dont think a cooler would help. Yes it helps cool alot but i dont think it would keep the fluid cool enough to help it move like when it is cold.

1 of 1 people found this helpful.

alright thanx

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