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: Flasher unit inspection
1. Connect the connector to the flasher unit. 2. Connect the negative battery cable. 3. Measure the voltage at the flasher unit using voltmeter. When inspecting terminal F for continuity, disconnect the flasher unit connector. 4. If the value are not as specified in the Terminal Voltag ...

Mazda 6 Service Manual: Drive belt auto tensioner inspection
1. Remove the drive belt. (See DRIVE BELT REPLACEMENT.) 2. Verify that the drive belt auto tensioner moves smoothly in the operational direction. Replace the drive belt auto tensioner if necessary. 3. Turn the drive belt auto tensioner pulley by hand and verify that it rotates smoothly ...