Evap Code P0449

[bruce s]

I have a 2008 GMC Yukon SLT. I have had the evap solenoid replaced and a new gas cap installed. I am still getting the P0449 code. What else can I check? So tired of check engine light on and not being able to use the auto-start cause the check engine light is on. I tried clearing the code, but immediately comes back on.
Thanks for any suggestions....

 

[bruce s]

I am also smelling fuel on the outside of the vehicle towards the rear.

 

[HiHoeSilver]

Which solenoid did you do? There is one under the hood, and one by the tank. Charcoal canister could be bad, and pellets could be clogging the lines.

Have you looked underneath for any gas? Could have a hole in the tank/pump/lines, too, I suppose.

 

[bruce s]

Which solenoid did you do? There is one under the hood, and one by the tank. Charcoal canister could be bad, and pellets could be clogging the lines.

Have you looked underneath for any gas? Could have a hole in the tank/pump/lines, too, I suppose.

Which solenoid did you do? There is one under the hood, and one by the tank. Charcoal canister could be bad, and pellets could be clogging the lines.

Have you looked underneath for any gas? Could have a hole in the tank/pump/lines, too, I suppose.

Replaced the one at the tank. No fuel leaks on ground.

 

[Erickk120]

Simple answer, vent valve solenoid is malfunctioning, could be as simple as replacing it. I would do both vent and purge solenoids, if that doesn't fix it it will have to be looked at further, such as examining evap line and canister.

 

[zbad55]

Since you replace the canister vent solenoid, you may have a problem with the 5/8 vent line and also the canister. Since you are smelling fuel most like the line and canister.

 

[bruce s]

Since you replace the canister vent solenoid, you may have a problem with the 5/8 vent line and also the canister. Since you are smelling fuel most like the line and canister.

I'll look further into that, makes sense. Maybe there's a hole in the line or a bad connection.
Thanks

 

[Kraig]

Did you put an AC Delco part in there or something from autozone or equivalent?

 

[bruce s]

Did you put an AC Delco part in there or something from autozone or equivalent?

I believe they pit a autozone part in. The sucky part is that the guy who owned the business for decades had his cancer get worse and he had to close up and sell the shop so I can't go back to them.

 

[Erickk120]

The gas smell is likely a line or a bad canister, when my canister died I kept smelling gas after driving a while, and the tank would vent air if I opened the cap. Probably a clogged canister that would build pressure and it coudlnt vent it. I only do ac delco parts for little dumb things such as sensors and solenoid. I dont trust autozone sensors/solenoids.