Question about 1989 Chevrolet Camaro

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Rough idle but runs good.battery drains overnite

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This could be a number of things one is not necessarily connected to the other.. Check to see that the battery is in good condition (load test for bad cell) check to make sure no lights are remaining on (trunk or glove compartment lights) make sure the alternator does not have a bad diode or rectifier bridge (disconnect the battery wire from the alternator then touch it to the terminal you just removed it from and see if there is any spark, if there is the alternator needs to be replaced.. Is there a check engine light on? If there is then a code will be stored in memory of the computer which will greatly expedite a diagnosis to the rough idle.. I would check for broken vacuum hoses or loose clamps between air filter and engine connection.

Posted on Jun 07, 2010

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