Question about 1997 GMC Safari

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Altimeter drops at low idle and goes to charge when driving checked the belt and the belt tensioner ok

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I suspect you mean alternator.It could be that your drive belt is a little loose, meaning the tensioner is loosing its tension but it's more likely that the alternator is starting to show its age. Unless you do a lot of idling there's no need to be concerned yet. Keep an eye on it and when it gets worse, meaning it won't start charging on its on under normal driving, then change it out.

Posted on Nov 17, 2013

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Hi

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If the problem is still there, a new, or reconditioned alternator, seems the only answer !

Good Luck !

Please give me a Fixya Rating.... I need to be a Guru !

John.

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