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| Cavalier Problem Diagnosis Got a problem you can't fix? We can help. |
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02-02-2010, 04:09 AM
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#1 | |
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AF Newbie
Join Date: Feb 2010
Location: Clyde, Ohio
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97 Sunfire,runs great until you turn on lights
My daughters 97 Sunfire,2.2 engine,auto trans has a strange problem...it runs great until you turn on the headlights or blower motor. the alt is putting out plenty and I even swapped it out with another just to make sure. can the ECM be a possible link? HELP
Thanks,Troy |
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02-02-2010, 08:41 PM
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#2 | |
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AF Enthusiast
Join Date: Dec 2004
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Re: 97 Sunfire,runs great until you turn on lights
probably a ground issue... Start by checking the body ground on the battery tray. Can't rule out the PCM yet, but I sure wouldn't start there
__________________
'04 Cavalier coupe M/T 2.2 Ecotec Supercharged 14 PSI boost, charge air cooler, 42# injectors Tuned with HP Tuners Poly engine/trans/control arm bushings Self built and self programmed progressive methanol injection system |
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02-02-2010, 09:08 PM
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#3 | |
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Re: 97 Sunfire,runs great until you turn on lights
How old is the battery?
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02-05-2010, 12:30 AM
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#4 | |
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Re: 97 Sunfire,runs great until you turn on lights
about 11 months...it load tested good.
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02-05-2010, 12:34 AM
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#5 | |
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Re: 97 Sunfire,runs great until you turn on lights
Thanks, I recleaned the grounds today and got better results. I'll most likely change the cable this weekend. Thanks for everyones input.
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