Transmission pump

pump
transmissions

#1

I have a 2005 trailblazer leaking fluid out the vent. Could the pump be going bad?


#2

I wouldn’t bet on that.


#3

Probably not. The venting could be from overfilling or coolant mixing with the ATF. How does the fluid level condition look?? Do you tow with it??

transman


#4

The dealer said that my transmission fluid was over filled and that it needed to be flushed and filled to the correct level. I have never had my ATF changed so I did not understand how it could be over filled, but I went ahead and had them change the fluid. It still is leaking but the level does not seem to be dropping and yes, I tow a trailer a lot. The dealer said that if the flush did not correct the problem then it is probably the pump.


#5

The leak I speak of is small, probably the size of a quarter when I let it sit over night. It has 50,000 miles and the ATF looks clear with a red tint to it, but again I just had it changed.