04 Pontiac Sunfire

BELLJA

MEMBER
2004 PONTIAC SUNFIRE
4 CYL

Have an 04 pontiac sunfire with a 2.2L. Turned the key over to start it and didnt hold the key long enough to keep it running. When I turned the key back over it just cranked without firing at all. Checked all fuses and relays in the fuse box under the hood. What should I check next? Coil and module were both replaced 3 yrs ago.

Wednesday, February 9th, 2011 AT 8:58 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

**Cranks but no start condition:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

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Tuesday, March 22nd, 2011 AT 4:12 AM