service light is on

my service light is on. 2000 cavalier! why? :x

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Because your battery isn't dead. H
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You need a new one.

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boomer10132003 wrote:

Perhaps it needs service.
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Could be a reason as simple as a headlamp burned out to a sensor malfunction. Get the codes set in the BCM and look it up.

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Probably loose gas cap syndrome. Be sure to tighten cap past a couple of clicks after getting gas. Rick

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Your service light is broke and is in need of service.
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On 22 Jun 2005 19:36:08 -0400, boomer10132003

defective, fuel trouble, ignition trouble, faulty sensor somewhere. You'll probably have to take it to a shop and get the fault code(s) from the computer read. If the light is on a code has been generated and stored.
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