Transmission problem, it lose pressure What could it be?

Chelo Caride Ramos

Asked by Apr 21, 2015 at 09:45 AM about the 1999 Nissan Pathfinder 4 Dr LE SUV

Question type: Maintenance & Repair

Re4r01a transmission,  when gets hot it
start to lose pressure to foward and
reverse, it is fully repaired with new torque
converter clutch and new valve body with
solenoids. Still with problem
Please help

3 Answers


wht do u mean looses pressure to forward and reverse


This has been quite a problem for Nissan owners. Try changing your fuel filter and cleaning your MAF with a can of CRC Mass Air Flow cleaner. Was reading a Nissan forum and one poster said he did this and the vehicle was fine once again. Wasn't the transmission after all. Between a bad fuel filter and bad air, it made it seem as if the transmission was at fault................................................................. tranny-issues-similar-please-read-t311262.html


If it is getting hot then it sounds like the cooler is plugged inside the radiator. Automatics do not like heat, the fluid burns rather quickly then it has lost it's lubing qualities and the tranny burnes up. Have the flow tested through the radiator, if it has low or no flow you can either repalce the radiator or put on an auxiliary trans cooler and totally bypass the radiator cooler. Just make sure it is big enough to handle or rig.

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