Evap issue question 09 yukon 5.3? - SOLVED

[GMCYukon2009]

I've replaced the canister vent valve solenoid ( by rear end) and the canister purge valve ( on engine ). I still cannot fill fuel without the gas nozzle clicking off often. I can fill slowly.
Can I run the vehicle or will something else go wrong before I can get it fixed?

Thanks

 

[Fless]

You can run it. All you'll get is the CEL for the emissions issue.

Sounds like the evap lines might need to be blown out.

 

[solli5pack]

I've replaced the canister vent valve solenoid ( by rear end) and the canister purge valve ( on engine ). I still cannot fill fuel without the gas nozzle clicking off often. I can fill slowly.
Can I run the vehicle or will something else go wrong before I can get it fixed?

Thanks

Don't forget about the Carbon canister...if it's clogged filling up with gas can be an adventure.

 

[tuckerrnr1]

For me that was the culprit on my 2010. When I had the canister off, I pressurized the gas tank with air from a compressor at the filler tube to blow out the lines. The canister was heavy with fuel as a result of to often topping the tank off to overfilling.

 

[Geotrash]

For me that was the culprit on my 2010. When I had the canister off, I pressurized the gas tank with air from a compressor at the filler tube to blow out the lines. The canister was heavy with fuel as a result of to often topping the tank off to overfilling.

Yep. Without people doing that the canister would probably last the life of the vehicle.

 

[GMCYukon2009]

Thanks for the replies.

 

[91RS]

If the canister came apart, you’ve got charcoal everywhere, including the lines in the tank. I had to replace my hard line, which is now discontinued, because I couldn’t get it cleaned out. I managed to get the pipes on the outside of the tank cleaned out by squeezing the whole line with pliers to break up the charcoal and blow it out. I had to drop my tank and I duct taped a smaller piece of nylon pipe to a shop vac and sucked the charcoal out of the line and cleaned up what I could from inside the tank.

 

[GMCYukon2009]

I found some carbon pellets inside the canister purge valve on the engine so I had a shop replace the carbon vapor canister and blow out the lines.
It works perfectly now.
Once again thanks for the replies.

 

[Chevymec]

Just went through this same thing. I tried blowing out my vapor lines on the tank but it all just wouldn't come out. Rockauto had new GM lines so I replaced them.