Chevrolet 1979 Light Duty Truck Owner's Manual page 51

•
Needle may not move away from FULL until some time after
fill-up.
•
Needle may move during turns, stops and accelerations.
When the ignition switch is turned to the OFF position, the needle will
not necessarily return all the way to the EMPTY mark.
Oil Pressure I ndicator Light
This light will come on to provide a "bulb check" when the ignition
is turned on, but should go out after the engine is started. If light fails
to come on with ignition turned on, it could indicate a burned out bulb,
a defective electric choke heater circuit (on L-6 engines), or a blown
fuse. Have system repaired if light does not come on during check.
Occasionally, this light may flicker momentarily while the engine is
running but this will not harm the system. However, if the light
remains on during normal engine operation, the engine should be
stopped until the cause of the trouble can be located and corrected.
The source of the trouble could be any of the following:
•
Loss of engine oil pressure.
•
Blown fuse.
•
Loss of electric choke heater voltage (L-6 engines).
NOTICE:
Continuing to run the engine with an illuminated oil pressure
light can cause serious damage to the engine or unusually high exhaust
system temperatures which could result in serious damage to the
vehicle.
Generator Ind icator Light
The red light G EN will go on when the ignition key is in the "on"
position, but before the engine is started. After the engine starts, the
light should go out and remain out. If the light remains on when engine
is running, have your Authorized Dealer locate and correct the trouble
as soon as possible.
Engine Temperature Ind icator Light
This indicator light is provided in the instrument cluster to quickly
warn of an overheated engine. With the ignition switch in the START
position, the red TEMP indicator (hot light) will light to let you know
that it is operating properly.
I N D I C A T O R
2-2 1
GAUGE