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Home >> Chevrolet >> 1996 >> Forward Control 5.7 K, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Gasoline >> Testing >> Oil Pressure Gauge >> Gauge Is Inaccurate (Van)

Gauge Is Inaccurate (Van)

  1. Disconnect sending unit connector. Turn ignition on. Connect one Red lead of Gauge Tester (J 33431-B) to sending unit connector Tan wire. Connect other Red tester lead to ground. Set resistance dial to zero ohms, then slowly move to 88 ohms. If oil pressure gauge does not respond, go to next step. If oil pressure gauge reads zero, then slowly moves to about 80 psi, replace sending unit.
  2. Remove gauge tester. Disconnect instrument cluster connector. Connect a fused jumper wire between instrument cluster terminal B17 (Pink wire) and voltage. Connect another fused jumper between instrument cluster terminal B13 (Black/White wire) and ground. Connect one Red lead of gauge tester between terminal B8 (Tan wire) and ground. Connect other Red lead to ground. Set resistance dial to zero ohms, then slowly move to 88 ohms.
  3. If oil pressure gauge reads low, then slowly moves toward high, repair high resistance in Tan wire. If oil pressure gauge does not respond correctly, replace instrument cluster.
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