Gas cap hissing. Can’t barely pump gas.

iboughtatahoe23 said:

Also my long term fuel trims are reading -10 and -12 in both banks. Am I running lean? Could the clogged lines or bad purge valve vent solenoid cause this

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Running rich. The PCM is taking away fuel (negative trims) because it's being told there's too much fuel by the O2 sensors. A bad purge valve can cause this, among other things, as can fuel contamination in the oil.

Fless said:

Running rich. The PCM is taking away fuel (negative trims) because it's being told there's too much fuel by the O2 sensors. A bad purge valve can cause this, among other things, as can fuel contamination in the oil.

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Just opened my hood and my coolant is very low for some reason as well … View attachment 450627

tuckerrnr1 said:

Yes, with the new canister and canister vent valve, purging in the described manor worked for me. A shop vac with the hose on the exhaust side might work as well. I applied air pressure for at least ten minutes until I saw no more charcoal coming out.

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I tried doing that; blowing down the filler neck with a air compressor and the little slot above the filler neck, with the charcoal canister off nothing came out of the EVAP lines even when I set a slab of cardboard under it it looks like just some water came out a few drops