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.

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Link: lemon-manuals.la
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EGR Control Solenoid: Description and Operation

The ECM controls vacuum to the EGR valve electronically--through the EGR bleed solenoid.
- When the engine is warm the solenoid is de-energized allowing vacuum to the EGR valve.
- When the engine is cold the solenoid is energized blocking vacuum to the EGR valve.
- The solenoid also decreases the amount of vacuum to the EGR valve when the [1][2]torque converter clutch is engaged.