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

Thermal Vacuum Valve: Testing and Inspection

Fig. 30 EGR/EFE/EMR Thermal Vacuum Switch:





Below the switching point, Ports 1 and 2 and 3 and 6 should be connected, while Ports 4 and 5 should be sealed, Fig. 30.
Above the switching point, Port 1 should be connected to Port 5, Port 2 should be connected to Port 6, and Port 3 should be connected to Port 4.