Mazda 6 Service Manual: No.4 hard to start/long crank/erratic start/erratic crank

No.3 will not crank

No.5 engine stalls-after start/at idle

Other materials:

Mazda 6 Service Manual: A-pillar trim removal
1. Turn the seaming welt over. 2. Disengage clips A using a fastener remover. 3. Pull the A-pillar trim, then disengage clip B (1). 4. Pull the A-pillar trim upward, then disengage clip B from the A-pillar trim (2). 5. Pull clip B out, then rotate 45°. 6. Remove clip B from the grommet b ...

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 ...