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Oil Temperature Gauge Appears Inaccurate

  1. Turn ignition on, with engine off. Disconnect oil temperature sensor connector. Using Signal Generator/Instrument Panel Tester (J-33431-B), connect Red clip lead to Dark Green/White wire of oil temperature sensor connector. Set tester resistance to 1400 ohms, then 26 ohms. Oil temperature gauge should indicate cold, then hot.
  2. If readings are as specified, replace oil temperature sensor. If temperature readings are not as specified, check for poor connections or high resistance in Dark Green/White wire between instrument cluster and oil temperature sensor. If Dark Green/White wire is okay, replace instrument cluster.
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