G 3500 1 Ton Van V8-454 7.4L VIN N TBI (1995)
Oil Pressure Gauge: Testing and Inspection
Fig. 1 Oil Pressure Gauge Indicates Low Pressure When Oil Pressure Is Good Diagnosis.
Fig. 2 Oil Pressure Gauge Indicates High Pressure At All Times Diagnosis.
Fig. 3 Oil Pressure Gauge Is Inaccurate Diagnosis.
Tester J24538-A, or equivalent, must be used to diagnose oil pressure gauge malfunction.
When troubleshooting oil pressure gauge refer to Figs. 1 through 3 for diagnostic charts.