Inspect Duty Vacuum Switching Valve Purge

Hose (to canister)

Hose (to canister)


(a) Turn the ignition switch to OFF.

(b) Disconnect the V4 purge VSV connector.

(c) Disconnect the hose (connected to the canister) from the purge VSV.

(d) Start the engine.

(e) Use your finger to confirm that the purge VSV has no suction.


Test Results

Suspected Trouble Areas

Proceed To

No suction



Suction applied

Purge VSV


(f) Reconnect the purge VSV connector.

(g) Reconnect the hose.

Was this article helpful?

0 0
Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook

Post a comment