C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Oct 3, 2011 | 09:48 PM
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Default guages eratic

the needles on my guages quite often become erratic. the needles will swing wildly, I'm sure i probably know why but i am drawing a blank, some direction please
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Old Oct 3, 2011 | 09:54 PM
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Edit....

The connector on PCM board on back of cluster.. if you have a 1979.... Or, one of the fingers where the connector plugs in is hitting another one...

Pull the center dash bezel out of the car and take a look.

Last edited by Willcox Corvette; Oct 3, 2011 at 09:57 PM.
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Old Oct 3, 2011 | 09:58 PM
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i was thinking ground, ill check it out and yes it is a 79 thanks
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Old Oct 3, 2011 | 10:30 PM
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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
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Then I would go straight to the printed circuit and/or the connector.. I feel pretty sure if you remove the center cluster you'll find your problem.
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