0440
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Evap trouble code 0440, replaced fuel cap, tested purge valve
Hello, I've got a p0440 trouble code. I vacuum tested the purge solenoid and it tested good. At the rear of the Buick I tested the vent solenoid. It tests good if I take it off and apply external power to it but doesn't seem to be engaging while plugged into the vehicle. I've had my wife...- deplane
- Thread
- 0440 purge solenoid vent
- Replies: 1
- Forum: Buick Century Forum
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