car repairs


Question by  awaintrub (16)

In a GMC, how do you change the transmission fluid on an Allison transmission?


Answer by  Jaggers (1018)

Allison transmission fluid is very stubborn and set in it's ways. Attempts to change are always met with fierce resistance. If the transmission drain plug can be removed and the fluid can be tricked to run out into a metal container weld a lid on it and you're home free.


Answer by  loveulouis (176)

If it is two wheel drive, all you have to do is get a large oil pan ,this is a messy job. remove all your cover bolts from the bottom of pan. leave one of the rear bolts in use a screw driver to pry pan loose,replace pan gasket reasemmble


Answer by  Jsands1982 (871)

There are two types of transmission. For a Manuel there should be two bolts on the side. one to fill and the other to drain. For auto consult your dealership.


Answer by  saileshks (37)

Drain pan, and remove bolts, Remove suction filter. Wipe and clean the suction filter install it, Install new pan with gasket. Pour 11 quarts of oil in transmission.


Answer by  Amber40 (24961)

Well there is a spin on filter that should be change and the fluid should be drained out of the drain hole. Then refill the system.


Answer by  MRColello (3)

You unplug the transmission fluid stopper, and then pour oil into the gas tank. Sometimes, however, you receive a check engine light if the oil was too cold. If this happens, you must turn the car off, remove the oil, heat it up, and follow the same process.

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