Question about 2000 Pontiac Grand Am GT

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New plugs,plug wires, occassional skip when driving,couple of times on normal excel car cut off.also new battery new alternator any ideas,no warning lights which is really unusual

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  • yadayada
    yadayada May 27, 2010

    check engine light on? any fault codes? has iot been tested for codes?



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My air bag light appears on the dash can you help please

Posted on May 27, 2010


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Bad plug or broken wire at the plug, at the alternator. Pull the plug off the alternator. Turn the key on and check for power and ground at the leads. No reading, probe the wires a couple inches back. If a read there fix or replace the plug. If you have a 3 wire plug, best to use an ohm meter. Test each wire separately. At the pin and a couple inches back on the wire. This test may include testing the wire back to the PCM and fuse panel. You'll need wiring schematics for this. The PCM is what fields the alternator to charge and supply power when the engine is running.

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Vehicle cuts out while driving and wont turn on replaced

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