manual transmission fluid amount


Asked by Nov 13, 2015 at 05:27 PM about the 1991 GMC Sierra 1500 C1500 Standard Cab SB

Question type: Maintenance & Repair

2 Answers

Grace Stover

To check transmission fluid in a manual you need to crawl under the vehicle and take the little rubber plug off the transmission on the side and stick your finger in there, it you feel fluid you're good. if you cant feel any you better put some in.


Basically you put fluid in until it is up to the bottom of the fill hole. An older truck like yours is probably due to have the gear oil drained and replaced.

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