Transmission Fluid Cooler Backflushing and Cleaning
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Do not exceed 40 psi (276 kPa) of air pressure when flushing the cooler or damage to the internal cooler fins will occur.
- Flush with clean transmission fluid only. Do not use solvents, mineral spirits or water-based cleaners.
- Backflush any contaminates out of the oil-to-air cooler by connecting the flushing machine pressure line to number 1 and the return line to number 2.
After 5 minutes, stop the machine, reverse the hoses and repeat the flushing.
- Backflush any contaminants out of the radiator in-tank cooler by connecting the flushing machine pressure line to number 2 and the return line to number 3.
After 5 minutes, stop the machine, reverse the hoses and repeat the flushing.
- Using compressed air, blow through the coolers until all fluid is removed.
CAUTION:
NOTE:
Rubber hoses must be attached to the ends of the fluid cooler tubes, to aid in connecting them to the cleaner.
CAUTION:
Do not exceed 276 kPa (40 psi) of air pressure when flushing the cooler. Damage to the cooler will occur.
NOTE:
Some vehicles are equipped with a cold weather bypass valve which cannot by cleaned or flushed. A new valve should be installed as part of an overhaul or prior to the installation of a remanufactured transaxle.