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2003 Pontiac Grand Am wiill not start
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Posted at Wed Nov 04, 2009 7:41 am |
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By
bigboy49,
New to the forum |
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Give Feedback | Votes: 0 |
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Engine Performance problem
2003 Pontiac Grand Am 6 cyl Front Wheel Drive Automatic 75000 miles
my car will not start when outside air temp. is below 50 degrees. above that it runs fine. i changed crank sensors, map sensor, wires, computer, tune up still will not start please help |
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car repair manual for your Pontiac Grand Am Repair Question.
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Posted at Wed Nov 04, 2009 8:22 am |
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By
rasmataz,
Certified 2CarPros Master Technician |
 (8489) Give Feedback | Votes: 230 |
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Do below and check what's missing fuel or spark
Get a starting fluid/ether/better off gas in a spray bottle and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, 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, ECM,Ignitor camshaft and crankshaft sensors- Note: If it doesn't apply disregard it |
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