geo Workshop Repair Guides

Geo Workshop Service and Repair Manuals

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EGR Vacuum Solenoid Valve <--> [EGR Control Solenoid] > < Exhaust Gas Recycle (EGR) Modulator <--> [EGR Backpressure Transducer]|Description and Operation|Page 2360

Tracker 4x2 L4-1.6L SOHC TBI (1994)

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3.

Connect vacuum pump to nozzle "P" and plug nozzle "Q" with your finger. While blowing air into nozzle "A," operate vacuum pump and check
that vacuum is applied to modulator.

4.

If the modulator fails any of the previous tests, then it is defective and should be replaced. 

EGR Vacuum Solenoid Valve <--> [EGR Control Solenoid] > < Exhaust Gas Recycle (EGR) Modulator <--> [EGR Backpressure Transducer]|Description and Operation|Page 2360