Note
1. Remove the two oil cooler line hoses and apply air pressure of 196 kPa {2.0 kgf/cm2, 28 psi}
from the return hose (pipe) side.
Caution

2. If there is no air blown out the feed side, flush the oil cooler lines using the power-flushing tool. (See Power Flushing)
Recommended power-flushing manufacturer

3. If there is ventilation, carry out the following steps.
(1) Remove the oil pan and inspect the fluid filter element from the front filter.

(2) If the element is covered with too much debris or particles and cannot be seen, replace the oil cooler. (See OIL COOLER REMOVAL/INSTALLATION.) (See OIL COOLER DISASSEMBLY/ASSEMBLY.)
(3) If the element can be seen, flush the oil cooler lines using the power-flushing tool.
- Performing back and reverse power flushing two times each does not work because debris or particles
Power Flushing
Repair procedure
1. Before power flushing, inspect the hoses/lines and clamps. Power flushing must begin with back flushing followed by forward flushing to quickly dislodge the restriction. If back flushing is not performed before forward flushing, the restriction could further reduce the ATF flow through the internal mesh type baffle of the cooler and flushing will not be effective or possible.
Inspecting oil lines and clamps
1. Be sure to inspect the lines (hoses/pipes) for cuts, crimps (pinched), cracks or any other damage before reusing them.
Caution
Back flushing
1. Using the power flushing equipment manufacturer's instructions, connect equipment so the flushing fluid flows in the opposite direction of normal fluid flow.

2. Flush oil cooler/lines until discharge fluid is clean.
Caution
Forward flushing
1. Connect power flushing equipment so the flushing fluid flows in the direction of normal fluid flow.
2. Flush oil cooler/lines until discharge fluid is clean.

Control valve body installation
Oil cooler removal/installationMazda 6 Service Manual: Fuel pump unit disassembly/assembly
Warning
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injuries or death and damage. Fuel can also irritate skin and
eyes. To prevent this, do not damage the sealing surface of the fuel pump
unit when removing or installing.
1. Disassemble in the order ...
Mazda 6 Service Manual: Oil seal replacement
1. Drain the ATF. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT.)
Caution
The oil seal is easily damaged by the sharp edges of the drive
shaft splines. Do not let the splines contact the oil seal.
2. Remove the drive shaft. (See DRIVE SHAFT REMOVAL/INSTALLATION.)
3. Remove the oil sea ...