Operation CHARM
: Car repair manuals for everyone.
Home
>>
GMC Truck
>>
1991
>>
K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI
>>
Repair and Diagnosis
>>
Engine, Cooling and Exhaust
>>
Engine
>>
Testing and Inspection
>>
Instrument Panel Oil Warning Lamp "ON" at Idle
Instrument Panel Oil Warning Lamp "ON" at Idle
^
Oil cooler, or cooler line restricted. Remove restrictions in cooler or cooler line.
^
Oil pump pressure low.