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

Tach needle issue?

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Old Aug 1, 2017 | 09:29 PM
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Default Tach needle issue?

I have an issue with my factory tach gauge on my 94 auto. At start up it stays at zero until I hit a bump or, it just pops up to normal. So, my question is is this issue mechanical, meaning is the gauge sticking or could it be electrical?
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Old Aug 2, 2017 | 01:20 AM
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Originally Posted by Kens94
I have an issue with my factory tach gauge on my 94 auto. At start up it stays at zero until I hit a bump or, it just pops up to normal. So, my question is is this issue mechanical, meaning is the gauge sticking or could it be electrical?
KEY-ON but NOT RUNNING where does the needle park? Does it always?
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Old Aug 2, 2017 | 05:08 PM
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Originally Posted by WVZR-1
KEY-ON but NOT RUNNING where does the needle park? Does it always?
Needle stays in the bottom position. Almost every time I crank the car.
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Old Aug 2, 2017 | 05:32 PM
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Originally Posted by Kens94
Needle stays in the bottom position. Almost every time I crank the car.
JUST "KEY - ON" NO CRANKING - KEY ON and make no attempt to do anything. An electronic tach should always park @ 0 when KEY ON, not higher or lower but 0

When you shut down from any RPM "KEY OFF" the needle could park "ANYWHERE"!!!!

Last edited by WVZR-1; Aug 2, 2017 at 05:34 PM.
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