Mazda 6 Service Manual: No.6 cranks normally but will not start

No.5 engine stalls-after start/at idle

No.7 slow return to idle

Other materials:

Mazda 6 Service Manual: Oil cooler removal/installation
1. Disconnect the negative battery cable. 2. Drain the ATF into a container. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT.) 3. Remove the radiator. (See RADIATOR REMOVAL/INSTALLATION.) 4. Remove in the order indicated in the table. 5. Install in the reverse order of removal. 6. Add ATF to ...

Mazda 6 Service Manual: Nonreturn valve inspection
1. Remove the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION.) 2. Siphon the fuel from the fuel tank. Note Nonreturn valve is integrated in the fuel tank. The nonreturn valve is normally closed by the spring force. 3. Verify that the nonreturn valve is closed. If the nonretu ...