Car stalls and wont start until the next day

PRINCESSPURR

MEMBER
2005 PONTIAC SUNFIRE
4 CYL
FWD
AUTOMATIC
10,000 MILES

I own a 2005 sunfire and I will start it then it will stall then when I try to restart the car it turns over but it wont start. Its like it wont spark or gas is not getting through. I already changed my fuel pump and checked all my lines. My car wont start until the next day. Then it will work for a while then the same thing happens again. It does this in the summer and the winter. Please help me it is costing me a fortune trying to fix the car. When hooked up to the computer nothing registers as broken. Thank you for your help. Princess purr

Tuesday, February 1st, 2011 AT 12:53 AM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Next time it refuses to start don't wait for it to make up its mind-do below immediately to determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 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 okay-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, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing.

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Tuesday, February 1st, 2011 AT 2:11 AM