ATF circulation

[Tiger]

Auto tranny definitely have a pump. It is the first thing you take off when rebuilding.

[pfmc24]

Anyone know a method of checking that automatic gearbox fluid is circulating through the cooling system properly?
Anyone know how the circuit actually works, i.e is there a pump in the gearbox, or is it due to pressure alone?
Cheers
Pete

[Ross]

If the car moves the pump works. You could disconnect the cooling lines and blow through them to check for flow.

[pfmc24]

Thanks guys....from the two replies given, can I assume the pump never fails?

"If the car moves the pump works"
"Auto tranny definitely have a pump. It is the first thing you take off when rebuilding"

[Ross]

Pumps can and do fail.
What exactly are you trying to do?

[pfmc24]

Hi Ross,
My gearbox is getting hot like never before, but the fluid does not smell burnt. I'm just trying to learn as much as I can about possible causes.
Poor fluid circulation seems logical.

[Ross]

Hmmm, are the lines to and from the cooler getting hot? Operation otherwise normal?
What brings you to the conclusion that it is too hot?