Engine Oil Pressure Switch - Test
This procedure tests the engine oil pressure switch for correct operation.
- Turn the ignition switch to the ON position, but do not start the engine. The oil pressure lamp should turn on for 0.5 seconds. This checks the lamp to determine if the lamp is operating correctly.
- If the lamp does not turn on for 0.5 seconds, check the electrical circuit to the lamp for a short or an open circuit. Check the engine oil pressure switch for a short or an open circuit. Check the bulb for the lamp for damage.
- If the circuit is correct, replace the engine oil pressure switch. If the circuit is repaired or if the engine oil pressure switch or lamp are replaced, repeat this step to ensure that the lamp turns on for 0.5 seconds.
- Remove the engine oil pressure switch from the cylinder block. Disconnect the wire connector on the wiring harness from the engine oil pressure switch. Use a 12 V battery as a power source. Connect the terminals of the battery, the engine oil pressure switch, and the leads of the 6V-7070 Digital Multimeter in series. Measure the current through the engine oil pressure switch.
- The current should be 0.30 to 0.40 A. If the current through the engine oil pressure switch is greater than 0.42 A, replace the engine oil pressure switch.
Caterpillar Information System:
New Oil Filters for all Cat Machines are Available {3004, 3067, 4295, 431F, 5068} New Oil Filters for all Cat Machines are Available {3004, 3067, 4295, 431F, 5068}
ESS IQ Remote Monitoring Deployment Management
Well Stimulation Pumps Pump (Power End) Lube Oil Pressure - Check
New Coolant Lines Are Now Used For Certain 797B Off-Highway Trucks {1380} New Coolant Lines Are Now Used For Certain 797B Off-Highway Trucks {1380}
C1.7 and C2.2 Industrial Engine Coolant Temperature Is High
A New Wiring Harness Is Used on Certain 3512 HD Dynamic Gas Blending Engines {1403} A New Wiring Harness Is Used on Certain 3512 HD Dynamic Gas Blending Engines {1403}
A New Filter is Available for the DEF Tank Adaptor for C7.1 Engines {108H} A New Filter is Available for the DEF Tank Adaptor for C7.1 Engines {108H}
Exhaust Gas Valve (NRS) for C4.4 Engines {5137} Exhaust Gas Valve (NRS) for C4.4 Engines {5137}
A New Diesel Exhaust Fluid Filter is Now Available for C7.1 Engines {108J} A New Diesel Exhaust Fluid Filter is Now Available for C7.1 Engines {108J}
Well Stimulation Pumps Pump (Fluid End) Valves, Seats, and Springs - Inspect
Well Stimulation Pumps Pump (Fluid End) Suction Manifold Seals - Replace
An Improved Diesel Oxidation Catalyst (DOC) Is Used on Certain 3512C Engines {1091} An Improved Diesel Oxidation Catalyst (DOC) Is Used on Certain 3512C Engines {1091}
C1.7 and C2.2 Industrial Engine Idle Validation - Test
C1.7 and C2.2 Industrial Engines Severe Service Application
C1.7 and C2.2 Industrial Engine Glow Plug Starting Aid - Test
C1.7 and C2.2 Industrial Engines Fuel System Secondary Filter/Water Separator - Drain
C1.7 and C2.2 Industrial Engines Fuel System Primary Filter/Water Separator - Drain
New Aftercooler Heat Shields Are Used on Certain 3500C Marine Engines {1063} New Aftercooler Heat Shields Are Used on Certain 3500C Marine Engines {1063}
374F Excavator Machine System Pressure Sensor
C7.1 Commercial Marine Engine Lubrication System
ESS IQ Remote Monitoring Real Time Monitor and Fleet Map
ESS IQ Remote Monitoring Work Orders
C175-20 Locomotive Engine Engine Valve Lash - Adjust
C12.9 Marine Propulsion Engine General Information