B250 3/4 Ton Van V8-318 5.2L VIN T FI (1992)
Oil Pressure Warning Lamp/Indicator: Testing and Inspection
The Low Oil Pressure lamp will illuminate when the ignition key is turned to the On position. The lamp also illuminates if the engine oil pressure drops
below a safe oil pressure level.
1. Turn ignition key to On position.
2. If lamp fails to illuminate, Check for the following conditions:
a. A broken or disconnected wire at the oil pressure combination unit, located at rear of engine.
b. If wire is satisfactory, pull connector loose from switch and connect a jumper wire from ground to engine.
c. With ignition key turned to On position. If lamp does not illuminate, inspect for a faulty bulb or disconnected socket in the instrument cluster.
3. If lamp illuminates, start engine. If lamp remains on, immediately stop engine and check oil pressure. If oil pressure is satisfactory, check for a
grounded wire and/or replace oil pressure sending unit.
