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Home >> Oldsmobile >> 1996 >> Eighty-Eight LS >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Analog >> Testing >> Coolant Temperature Gauge Test >> Gauge Inaccurate

Gauge Inaccurate

  1. Turn ignition off. Disconnect coolant temperature sensor connector. Connect 2 Red leads of Gauge Tester (J 33431) to coolant temperature sensor harness connector terminal "C" (Light Green wire) and ground. Turn ignition on.
  2. Set gauge tester resistance dials to 1400, 93, then 55 ohms. Coolant temperature gauge should indicate cold, then hot. If gauge responds as specified, check connector for good terminal contact. If terminal contact is okay, replace coolant temperature sensor.
  3. If gauge does not respond as specified, turn ignition off. Disconnect tester. Check all related wiring for good terminal contact and open circuits. If all wiring is okay, replace IPC.
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