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

Gauge Cluster

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Old Sep 3, 2025 | 10:07 PM
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Default Gauge Cluster

The digital gauge on my 85 vette is not displaying the rpm’s any idea how to address.
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Old Sep 4, 2025 | 09:36 AM
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Everything else is good speed, oil pressure all bases covered just No tach. You're probably unplugged or the Tach filter has failed, so start simple go to the distributor look for the plug next to the power lead make sure it's seated next follow the wire behind the motor (Tight quarters) make sure the wire and out of the filter are not broken off
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