Oil Cooler Flushing: Notes

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The contaminated cooler line (oil pipes and hoses) and auxiliary cooler must be flushed completely when A/T is overhauled or replaced.

Remove the two oil cooler line hoses and apply air pressure of 196 kPa {2.0 kgf/cm ² , 28 psi} from the return hose (pipe) side.

Fig 1: Applying Air Pressure From Return Hose (Pipe) Side
Courtesy of MAZDA MOTORS CORP.
CAUTION:
- Power flushing should be performed very carefully when removing the accumulated debris from the fluid baffle, otherwise the debris cannot be removed or the problem becomes even worse.
NOTE:
- Performing back and reverse power flushing two times each does not work because debris or particles flow out from the feed pipe side of A/T.
If there is no air blown out the feed side, flush the oil cooler lines using the power-flushing tool. (See POWER FLUSHING .)

Fig 2: Recommended Power-Flushing Manufacturer
Courtesy of MAZDA MOTORS CORP.