PO440 code Purge Solenoid/Vent Solenoid
My daughter has had this issue for a year now.
She has a PO440 CODE, Minor leak.
Teh gas cap has been replaced, The Vent Solenoid (The one on the rear Crossmember) has been disassembled and cleaned. with Voltage added, it holds as I try and blow through it.
Looking at an issue I have with a Vacuum line attached to the Purge Solenoid ( On intake manifold, passenger side, rear)
Is there a rubber 'o' ring in the hose that attaches to the Purge solenoid that keeps it from leaking when the hose is snapped in? My little plastic snap ring on the hose is broken, will that cause this Code?
BTW NAPA only shows a Vent solenoid for my '99 but they call it the Purge solenoid.
This '99 Blazer is my daughters.
It's the Newest car we own. I'm used to seeing Valve covers , not Wire looms everywhere.
Other vehicles in the stable:
1975 Jeep CJ5 Bought in 1980 Chevy powered fiberglass body I did the work
1985 Chevy Stepside Pickup// Original owner 298K miles
1989 Volvo 244 //Original owner 305K miles
1991 Ford Explorer Bought for $450 w/182K miles it now has 336K miles on it.