Transmission

Asked by May 22, 2017 at 10:08 PM about the 2003 Chevrolet Avalanche 1500 RWD

Question type: Maintenance & Repair

Hie i have a  question over my 2003 chevy
avalanche z66 i  changed the oil transmission and i
thought it would help alot the transmission, but
apparently for some reason it didnt, when i drive it i
dont feel when it shifts gears and when i hit 70m/p
the rpm's reaches 3000 and it wont shift so i dont
know what is wrong with it.

1 Answer

73,845

Changing the transmission fluid was a mistake, especially on a GM. Believe it or not the dirt and crud in the old fluid actually helps worn parts inside the transmission continue to work. Best course of action now is have it diagnosed by a reputable transmission shop. HTH. -Jim

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