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: Drive shaft (atx) disassembly/assembly
1. Disassemble in the order indicated in the table. 2. Assemble in the reverse order of disassembly. Boot Band (Wheel Side) Disassembly Note Note The boot band does not need to be removed unless it is being replaced. Remove the boot clamp with end clamp pliers as shown and discard the cla ...

Mazda 6 Service Manual: Variable tumble control solenoid valve inspection
1. Remove the variable tumble control solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 2. Inspect airflow between the ports under the following conditions. If not as specified, replace the variable tumble control solenoid valve. If as specified, carry out the Circuit Open/Short ...