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not likely PCM problem... most common cause is either ... Bad Cooling Fan Relay Blown Cooling Fan Fuse or Bad Cooling Fan Motor

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โˆ™ 2008-04-20 22:37:34
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Q: 1999 Chevy Cavalier When you are driving it works fine but when stopped it starts to overheat and the air conditioner turns on and off Could it be the pcm module?
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