Question about 1972 Chevrolet Corvette

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Innacurate reading with 1971 corvette speedometer

Speedometer fluctuates at all speeds?

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Either a bad spedometer cable on these older cars the spedo cable can be lubed with a special adapter and a special grease in your grease gun or the cable removed from the case and lubed OR the spedo head is tired and needs to be rebuilt

Posted on Sep 27, 2009

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I have an 84 C4 Corvette and the speedo works intermittently. No other problems on dash.


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unhook speedometer cable from transmission and spin cable by hand it should turn smoothly if it des hook end to a low sped drill and see if it holds at a steady speed if it does the the problem is in the plastic speedo gear in the trans if it dos not remove the dash and inspect the connection on the speedo head

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