Question about 2001 Pontiac Grand Am SE

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2001 Pontiac Grand AM, 3.4 V-6 Was running great, stopped. Tapped lighlty on ignition coils, started again. Tapping again would make it hesitate or stop. Have check coils for primary and secondary resistance; all in spec as is the crankshaft sensor signal (200+ mV). Good 12v supply and good ground to igntion module. I HAD a good spark, then none. Replaced the igniton coil module (twice, thought one might be bad, was about 2 years ago); still NO spark, but have noticed a 'static' shock from car door after trying to start it? It turns over good, has good gas pressure (55psi). HELP!!! Thanks! Mike

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I have replaced many crank sensors that tested good but would intermittantly fail while running

Posted on May 05, 2010


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tune up, maintenance and likely an air filter required
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2001 grand prix won't start. Does not fire or turn over but has full power. It may start sometime later. the problem comes and goes.

The most likely cause is going to be either the crank position sensor (CPS) or the ignition module itself. The ignition module is located directly under the 3 coil packs nearest the firewall. the CPS is located directly behind the crank shaft pulley. Heat saturation is what kills these solid state units. They work great cold and as heat creates resistance, the computer can not read the signal. There is no "fix" for these components. Replacement is required. If you need instructions on how to test these or replace these components, please let me know.

Aug 15, 2010 | 2001 Pontiac Grand Prix

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2001 pontiac grand am 3.4 V-6 Was running fine, stopped. Tapped on igniton coils, started again. Could tap on them and it would hesitate or stop. All coils with good primary and secondary resistance. All...

Well I can tell you no matter what your gauge says on the groundwires to the system..... you've got a bad ground or a hot touching ground somewhere and I think that you should recheck your steps. Not all books are always correct in their schematics when it comes to your individual car especially if your not the first owner and don't have a complete history of work performed prior to you owning it. ie. stereo, drive lights, electrical modifications or repairs etc. etc. I would start with the body ground myself. clean its application area and make sure you are getting a true metal to metal contact. As with all your connections.

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this should be a 2.3 which has the spark plugs under a plastic cover on top of the engine, the ignition coil is inside this cover.

Feb 20, 2010 | 2001 Pontiac Grand Am SE

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2001 Pontiac Grand Am SE

answer is on other post.

Aug 13, 2008 | 2001 Pontiac Grand Am SE

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