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Home >> Eagle >> 1990 >> Premier ES >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Standard >> Testing >> Coolant Temperature Gauge Inoperative (Other Gauges Okay) >> Ignition Switch In RUN Position

Ignition Switch In RUN Position

  1. Disconnect coolant temperature sender connector. If needle moves to full COLD position, gauge is okay. Go to step 2). If needle does not move to full COLD position, check circuit between temperature sender and instrument cluster for a short to ground. If circuit is okay, replace temperature gauge.
  2. Momentarily touch terminal No. 2 of temperature sender connector to ground. If needle moves to full HOT position, replace temperature sender. If needle does not move to full HOT position, check for an open circuit between temperature sender and instrument cluster.
  3. Inspect instrument cluster printed circuit for cracks or poor contacts. If no problem is found, replace temperature gauge. If cracks or poor contact points are found, replace printed circuit.
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