Ranger 4WD V6-3.0L VIN U (1997)
Oil Pressure Gauge: Testing and Inspection
1. Disconnect connector from the oil pressure sender.
2. Turn the vehicle ignition switch lock cylinder to ON position.
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Short the connector directly to engine ground. The centerline of the pointer should fall slightly above the oil pressure gauge mid-scale.
3. Withe connector attached to the oil pressure sender and ignition switch lock cylinder on, the center line of the pointer should fall on or below the
"L" mark.
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If the oil pressure gauge tests within calibration, replace oil pressure sender.
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If the oil pressure gauge still tests out of calibration, replace the gauge.
