Long story [not so] short my original vapor canister blew out on my tahoe about 2 years ago and threw carbon throughout the EVAP system.
I went ahead and replaced all EVAP lines, the fuel pump (preventative), purge valve, purge canister, and vapor canister and all was good for about 6 months ... then I got yet another "tighten fuel cap" message on the dash.
I popped off the line to the purge solenoid and it was full of carbon again. I dropped the canister and it was shot just like the original one. I replaced it again and everything was fine until earlier this week. I drove out of town and back (~ 5 hours) and went to fill up when I got back into town. I was at ~ 1/4 tank (my absolute lowest I'm ever willing to go) and the fuel nozzle was filling at an exceedingly slow pace, like a gallon every 2 minutes. I got 12 gallons into the tank and stopped it, figuring it was just a crap gas station filler nozzle. I went to the gas station next door and the filler nozzle shut off immediately on me. The gauge on the dash was reading at ~ 7/8 fill at that point. I drove it around town for the last 2 days and went to try and fill up, as I was at ~ 2/3 tank, and I am still dealing with the same problem.
I just took off the canister and it is FULL of fuel. I don't top off when filling so I'm lost as to why this is happening.
I have no codes, and I know this EVAP system is terrible but now having to replace a third canister is beyond frustrating. Am I missing something here that is causing the fuel to push through to the canister?? I park in a garage while at home and on rare occasion park on a slope at work (nose up; MAYBE 10 degrees at most). Is this a plausible cause for what I'm seeing?
I hate that I'm posting yet another "why can't I fill up?" thread but now I'm second guessing myself lol
I went ahead and replaced all EVAP lines, the fuel pump (preventative), purge valve, purge canister, and vapor canister and all was good for about 6 months ... then I got yet another "tighten fuel cap" message on the dash.
I popped off the line to the purge solenoid and it was full of carbon again. I dropped the canister and it was shot just like the original one. I replaced it again and everything was fine until earlier this week. I drove out of town and back (~ 5 hours) and went to fill up when I got back into town. I was at ~ 1/4 tank (my absolute lowest I'm ever willing to go) and the fuel nozzle was filling at an exceedingly slow pace, like a gallon every 2 minutes. I got 12 gallons into the tank and stopped it, figuring it was just a crap gas station filler nozzle. I went to the gas station next door and the filler nozzle shut off immediately on me. The gauge on the dash was reading at ~ 7/8 fill at that point. I drove it around town for the last 2 days and went to try and fill up, as I was at ~ 2/3 tank, and I am still dealing with the same problem.
I just took off the canister and it is FULL of fuel. I don't top off when filling so I'm lost as to why this is happening.
I have no codes, and I know this EVAP system is terrible but now having to replace a third canister is beyond frustrating. Am I missing something here that is causing the fuel to push through to the canister?? I park in a garage while at home and on rare occasion park on a slope at work (nose up; MAYBE 10 degrees at most). Is this a plausible cause for what I'm seeing?
I hate that I'm posting yet another "why can't I fill up?" thread but now I'm second guessing myself lol