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)

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Engine Oil Pressure Check

Check oil pressure using gauge at oil pressure switch location. Oil pressure should be 41 kPa (6 psi) at idle or 241 to 517 kPa (35 to 75 psi) at 3000 RPM.
1. Remove pressure sending unit and install oil pressure gauge.

CAUTION: If oil pressure is 0 at idle, do not run engine at 3000 RPM.

2. Warm engine at high idle until thermostat opens.