Erratic temperature gauge and warning light on Buick Regal

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.

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Average mileage: (–)
Electrical & Lights affected: 3.1L V6
4 model years affected: 1990, 1991, 1992, 1993
4 people reported this problem
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