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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Emission Control Systems: Description and Operation





This normally closed vacuum switch assembly is used on the 2.0L diesels. The switch is open when the vacuum pump output is more than 6.0 ±0.5 inches of vacuum. If the vacuum falls below 6.0 ±0.5 inches of vacuum the switch will close and light the low vacuum lamp.