evap leak?
Hotshot
Joined: Aug 2002
Posts: 12,679
Likes: 15
From: BC, Canada
Do you have the actual code and not just the description?
If it's a P0455 the common causes are a bad canister vent solenoid, mud in the evap canister and/or broken wiring to the canister vent solenoid.
The canister and solenoid are above and behind the rear axle, under the truck box.
If it's a P0455 the common causes are a bad canister vent solenoid, mud in the evap canister and/or broken wiring to the canister vent solenoid.
The canister and solenoid are above and behind the rear axle, under the truck box.
Last edited by Racerguy; Dec 2, 2006 at 08:39 PM.
Hotshot
Joined: Aug 2002
Posts: 12,679
Likes: 15
From: BC, Canada
You can check the canister vent solenoid with an ohmmeter. It should be 48-65 ohms with the connector off.
Also check the wiring between it and the frame for breaks, corrosion etc.
Also check the wiring between it and the frame for breaks, corrosion etc.
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Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,078
From: St Louis
Originally Posted by 84f250460
no theres a seperate code listed for the gas cap. according to the code book this is something diff.
It would be extraordinarily helpful to your own cause if you specifically identified your vehicle. There are year-to-year differences and even variations within years for various sub-models. It is obvious we are not dealing with a 1984 vehicel here....
Steve
Last edited by projectSHO89; Dec 3, 2006 at 11:32 AM.
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Junior User
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It gets pretty simple if you smell gas when you get out of the truck and when your walking by the fuel tank cap. I hate to say this really I do but, Woops dare it is. But then again if your smelling fumes in the cab, and not outside then you have an under the hood leak, if only the outside and not near the cap then your on a line hunt follow your nose, and do it with loww fuel in the tank and immediately after a good long run
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,078
From: St Louis
Originally Posted by amerimutt
It gets pretty simple if you smell gas when you get out of the truck and when your walking by the fuel tank cap. I hate to say this really I do but, Woops dare it is. But then again if your smelling fumes in the cab, and not outside then you have an under the hood leak, if only the outside and not near the cap then your on a line hunt follow your nose, and do it with loww fuel in the tank and immediately after a good long run
Post Fiend
Joined: Jun 2005
Posts: 7,047
Likes: 2
From: North west La
I just got a P0442 code. Its not my gas cap its new. My truck has given problems with this system for the last 60k. Every time I fix one part another goes out. I'll check the solenoid & canester again. I'm sick of this system. The fuel senser in the tank went out last & fried my ecu. I can't believe how much trouble this system has been.
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