Transmission problem

Asked by Mfcran Sep 03, 2020 at 09:51 AM about the 1993 GMC Sierra 1500 C1500 SLE Standard Cab LB

Question type: Maintenance & Repair

Sometimes truck will rev up but won't gonna  
over 15mph. Was told to replace
transmission filter but not fluid. But that
doing so I'd still have to replace
transmission very soon

1 Answer
40,180

TDolby answered 3 years ago

To replace the filter, you have to drop the pan, which then you will be removing and changing the fluid. When was the last time you serviced the transmission? Not going over 15mph isn't fluid or filter related, IMO. On a 27 year old truck, the odds of others transmission internals that are worn are high.

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