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Old 09-14-2010, 07:28 PM
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How to fix odometer 1985 Corvette

How can I fix the odometer on a 1985 Corvette I have looked in the books to find nothing on this. Odometer is stuck on 54,900 is it cable or motor or both.Any diagrams would help. Thanks. Bill

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Old 09-15-2010, 09:55 AM
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I'm not certain about the Corvette but in the mid '80s GM was using a gadget called a odometer stepper motor to drive a mechanical odometer.
That may be the only thing wrong.
Before disassembling the instrument cluster I would get the shop manual from www.alldatadiy.com
Once you locate the stepper, disconnect it and test it with an ohmmeter to see if burned out or shorted.

vicrod
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Old 09-15-2010, 10:16 PM
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Vic,you are right, the 85 corvette is the same way. the killer on the corvettes is the disassembly of the instrument cluster, to the OP-be very careful with the cluster disassembly, there are 3 full sized circuit boards stacked and connected together and a full size flexable plastic deal with gold/copper paint to connect all circuits and lights together. PS, change ALL THE LIGHT BULBS in there while you are at it, you will be glad you did.
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