C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Tach problem

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Old Jan 3, 2016 | 01:02 PM
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Default Tach problem

My tachometer is not responding lights up when you start the car what I need to know is how to test it to see if it's the wiring coming to it that's the problem or the actual tachometer itself
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Old Jan 3, 2016 | 01:28 PM
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Originally Posted by 86tjcorvette
My tachometer is not responding lights up when you start the car what I need to know is how to test it to see if it's the wiring coming to it that's the problem or the actual tachometer itself
Get a hand held and check it at the distributor, at the tach filter and just beyond the tach filter OR have someone with a correct scanner check it at the ALDL. The later check at the ALDL is likely to be the easiest even if you had to pay a little for it.

Last edited by WVZR-1; Jan 3, 2016 at 01:44 PM.
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Old Jan 3, 2016 | 03:31 PM
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Thank u I will trace that out and check it thank you
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Old Jan 5, 2016 | 10:54 AM
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It might be the tach filter that's bad. A $29.00 part.
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