Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Oil Pressure Sender: Testing and Inspection

OIL PRESSURE SWITCH INSPECTION

1. Verify that the oil pressure warning light illuminates when the ignition switch is at the ON position.
2. Verify that the oil pressure warping light goes out when the engine is started.
- If the oil pressure warning light does not illuminate or remains illuminated, inspect the related wiring harness.
- If the related wiring harness is normal, inspect the oil pressure.
- If the oil pressure is normal, replace the oil pressure switch.