Erratic temperature gauge and warning light: Buick Regal Electrical System

Problem overview

The engine temperature sensor wire for the engine temperature gauge, or warning light, may touch the rear exhaust manifold causing a short to ground causing erratic operation of the temperature gauge or warning light.

5 people reported this problem

1 comment

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Buick Regal vehicles with this problem

5 model years affected

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Erratic temperature gauge and warning light on Buick Regal

Problem overview

Buick Regal vehicles with this problem

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