Suburban 1/2 Ton 4WD V8-350 5.7L (1986)
Oil Level Warning Indicator: Description and Operation
On models less gauges, the oil/choke warning indicator lamp should be illuminated when the ignition switch is in the Run or Start position. When the
engine is started, the choke warning indicator lamp should go off. If the lamp fails to illuminate with ignition switch in Run or Start position with engine
not operating, a burnt out bulb or fuse or defect in choke electrical system is indicated. If lamp remains on after engine has been started, a problem in the
engine oil pressure system or electrical choke system exist.
On models equipped with gauges, the choke warning indicator lamp should be illuminated when the ignition switch is in the Run or Start position.
When the engine is started, the choke warning indicator lamp should go off. If fails to illuminate with ignition switch in Run or Start position with engine
not operating, a burnt out bulb or fuse or defect in choke electrical system is indicated. If lamp remains on after engine has been started, a problem in the
alternator circuit is indicated.
After service has been completed, the lamp operation should return to normal.