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Oil Pressure Gauge Always Indicates High

  1. Remove connector from oil pressure sending unit. Using a jumper wire, connect Tan wire on wiring harness side of connector to ground. Turn ignition on.
  2. If gauge indicates high, go to next step. If oil pressure gauge indicates low, check oil pressure sending unit ground wire for open or poor connections (if equipped). Repair as necessary. If wire and connections are okay, replace oil pressure sending unit.
  3. Check Tan sender wire to instrument cluster for short to ground. Check instrument cluster printed circuit for defects. If wire and printed circuit are okay, replace instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION.
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