1. Disconnect the negative battery cable.
2. Disconnect the EGR valve connector.
3. Remove in the order indicated in the table.


4. Install in the reverse order of removal.
Water Hose Removal Note
EGR Valve Removal Note
1. Remove the air hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION)
2. Remove the upper radiator hose. (See RADIATOR REMOVAL/INSTALLATION.)
Purge solenoid valve inspection
Egr valve inspectionMazda 6 Service Manual: Crankshaft position (ckp) sensor removal/installation
Removal
1. Perform the following procedure to making the working space.
(1) Remove the Front wheel (RH).
(2) Remove the splash shield.
2. Disconnect the CKP sensor connector.
3. Remove the installation bolts to remove the CKP sensor.
Installation
Caution
When foreign material such a ...
Mazda 6 Service Manual: Heater core inspection
1. Remove the A/C unit. (See A/C UNIT REMOVAL/INSTALLATION.)
2. Remove the heater core from the A/C unit.
3. Inspect for cracks, damage, and coolant leakage.
If any problems are found, replace the heater core.
4. Inspect for bent fins.
If any are bent, use a flathead screwdriver to stra ...