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11-23-2009
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#1 |
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Join Date: Dec 2005
Posts: 5
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Tachometer reads too high
Anybody knows where the problem lies? GM manual suggests bad ground or open in the DIM circuit.
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11-23-2009
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#2 |
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Join Date: Oct 2008
Location: tampa
Posts: 539
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Re: Tachometer reads too high
If it's reading 1000 RPM's higher, that's pretty typical for a 1990 Model, which i presume you own as these are prone to this issue.
Only fix is to replace the Tach in the cluster. |
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11-30-2009
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#3 |
Join Date: Aug 2008
Location: Houston 90 Red ZR-1
Posts: 2,320
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Re: Tachometer reads too high
Is it just reading high and idling normal?
Last edited by rhipsher; 11-30-2009 at 09:53 AM. |
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Linear Mode
