AT tranny Question Options

[kerosene]

How do you know when you need to change your tranny fluid?
When chanign fluid, you start draining, should i be put under pressure?
Can someone find the location of the nut for the tranny on a 2001 4Runner, I tried searching, but couldnt get it... i also checked manual...

[Bitter]

yes, there should be fluid in both the front and rear differentials. there may not be drain plugs, instead the cover may have to come off to empty that fluid. if its a limited slip then a special fluid or an additive is needed, check either the owners manual or call a dealer to see what you need.

even if theres a drain plug, its a good idea to remove the differential cover, inspect for damage or odd wear, clean the sludge from the bottom of the case, and reseal it. there should be a fill plug either on the stamped metal cover or on the input side of the case. usually its a plug with an inset square, often a socket wrench or breaker bar can be used. some however may be a large hex. it'll probably be difficult to remove if it never has been, spray it with penetrating lube every day for a couple of days prior to removing it, heat may even be needed to help loosen the gunk sticking it place.


one more word of warning, gear lube is some FOUL smelling thick nasty feeling oil. it stinks when its new, it stinks worse when its old and is nasty to clean up if you get it on your clothes or driveway. put down cardboard so you contain what you spill. if you do get it onto your clothes i suggest you use a chemical called Carb-o-Sol. its a dry cleaning degreaser that will remove the smell and the oil from the clothing item. but it has very strong fumes so use it in a well ventilated area and wear gloves.