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Hey guys, I’m having a potential issue with my vent solenoid on my 08 chevy cobalt (P0446). Fuel pump shuts off on me as if the tank is full, but it’s not. The feed wire has 12 V, and the control wire is a pull-down style and it’s getting 12V with the computer driver off and engine ON. Furthermore, I pulled the control wire to ground manually and I could hear the solenoid clicking. So vent solenoid is good. Where do i go now???
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Just a bit of extra information on this. The vent solenoid goes directly in the charcoal canister, so from what I can tell there is no vent line/hose that is connected to the solenoid. I was told that cleaning the vent line may fix the issue.
Also, the vent solenoid is cylindrical in shape and I dont believe is the type that I can blow into to check if it’s open, etc.
Any help is appreciated!
see if this helps.
http://www.justanswer.com/chevy/4pcz4-cobalt-p0446-rain.html
Thanks, that actually helps a lot. It looks like the hose nearest to the solenoid is the vent hose that I need to check out. Doesnt look like dirt/rocks/water can really get in there since it seems pretty sealed, but ya never know. Ill let ya know the result tomorrow.
The issue has been fixed. The vent hose was clogged. Its a ling hose that goes from the canister to around the gas cap area. What was it clogged with? Dead spiders and webs.
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