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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Oil Cooler, Engine




Oil Cooler Cover Bolts Tightening Sequence:






NOTE: Apply thread adhesive GM P/N 12345382 (Canadian P/N 10953489) to the engine oil cooler cover bolts.

Oil cooler cover bolts 20 Nm (15 ft. lbs.)

Oil cooler inlet and outlet nuts 30 Nm (22 ft. lbs.)


Oil cooler pipe fittings 30 Nm (22 ft. lbs.)