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

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3T40 Automatic Transaxle

NOTICE: Allow sufficient clearance around transmission oil cooler pipes in order to prevent damage or wear which may cause fluid loss.

If replacement of the transmission oil cooler pipes is required, use only double-wrapped and brazed steel pipe meeting GM specification 123M, or equivalent. The pipe should be double-flared.