buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Temperature Warning Lamp/Indicator, Engine Cooling > < Temperature Gauge|Description and Operation|Page 3247
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Temperature Gauge: Testing and Inspection

DIAGNOSIS BY SYMPTOM

Fig. 104  Chart 2: Engine Coolant Temperature Gauge Inoperative Or Inaccurate

1. ENGINE COOLANT TEMPERATURE (ECT) GAUGE IS INOP. OR INACCURATE.

2. ENGINE COOLANT TEMPERATURE, AND FUEL GAUGES ARE INACCURATE.

Connect a jumper wire from a good chassis ground to instrument Cluster connector terminal "C4" and connector terminal "C10". If gauges are
still inaccurate, service instrument cluster. See: Instrument Panel, Gauges and Warning Indicators/Testing and Inspection

Temperature Warning Lamp/Indicator, Engine Cooling > < Temperature Gauge|Description and Operation|Page 3247