
Diagnostic procedure


No.24 a/c is always on or a/c compressor runs continuously
No.26 exhaust sulphur smellMazda 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 ...
Mazda 6 Service Manual: Purge solenoid valve inspection
Airflow Inspection
Note
Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the purge solenoid valve. (See PURGE SOLENOID VALVE
REMOVAL/INSTALLATION.)
3. Inspect airflow between the ports under the following conditions.
If not as specifi ...