Oil Pressure Gauge Test
- Unplug connector from oil pressure sending unit, located on right side of engine block. Turn ignition on. Oil pressure gauge should indicate low. Install jumper wire between Yellow/Red wire of oil pressure sending unit harness connector and ground. Oil pressure gauge should indicate high. Connect Rotunda Gauge System Tester (021-00038) to Yellow/Red wire. Set tester to resistance values specified in TESTING OIL PRESSURE GAUGE
table.
- If oil pressure gauge operates as specified, replace sending unit. If gauge does not operate as specified, inspect instrument panel power and ground circuits.
TESTING OIL PRESSURE GAUGE
| Needle Position (psi) |
Resistance Setting Ohms |
| Up Position (120) |
0 |
| Three Quarter Position (90) |
15 |
| Middle Position (60) |
32 |
| Down Position (0) |
210 |