My 'Hoe smells like gas

[Randy Whistler]

OK, here's the newest weirdness. After filling the tank, there is a distinct gasoline smell for a day or so, until it burns some out of the tank. It's raw gas smell, not burned, and it only happens upon fill-up. Once the needle starts to move, the smell goes away.

I realize that the possibility of filling too full exists, but I'm kinda **** about gasoline fill-ups, so I rarely push it past the first or second fill nozzle shut-off, if that far.

I suspect it has something to do with a vent hose, etc., but don't know where to begin looking. When doing the brake line replacement, I did look over the underbelly and tanks but didn't see any glaring problems there.

Is this a common problem like the brake line? Anyone else run into something like this?

 

[fiatdale]

Might need a fuel pump

 

[Randy Whistler]

Might need a fuel pump

Hmmm. . . hadn't thought of that. it does have kind of a "whine" coming from the tank area when the fuel gets low. Not a squeal but a whine/whistle. Would that indicate a pump issue or a vacuum issue?

 

[Scottydoggs]

the top of the pump canister rusts out, as well as its lines coming off it. seen it happen to others here as well as my brothers yukon.

 

[Erickk120]

I had something similar on mine, but I had an evap code about tightening the fuel cap/large leak, replaced the fuel cap to a new OEM one that didn't fix it. At that time I also noticed that my charcoal canister was covered in transfer case fluid, I had previously worked on my transfer case due to some leaks, and also did the pump upgrade. At that time I kept noticing a gas smell every time I came back home, and there would be a lot of pressure build-up in the gas tank, ALso noticed it after filling the gas tank. Instead of diagnosing the prob, I shot it with the parts cannon, and replaced the canister with both purge and vent solenoids with AC delco parts, almost 200 dollars later that fixed my gas smell problems, tank pressure build up, and it got rid of the codes.

Do you have any codes?

 

[adriver]

OF COURSE I'm a hypocrite for saying it, but you really shouldn't fill it any past the first click.

 

[HiHoeSilver]

the top of the pump canister rusts out, as well as its lines coming off it. seen it happen to others here as well as my brothers yukon.

Like yo. After driving, slide under there and see if the passenger side of the tank is wet. Only thing is, it wouldn't go away as the tank emptied, as this would be leaking from the lines, not out of the tank.

 

[Erickk120]

Like yo. After driving, slide under there and see if the passenger side of the tank is wet. Only thing is, it wouldn't go away as the tank emptied, as this would be leaking from the lines, not out of the tank.

When I had something similar that was one of the first things I checked but then I realized I don't live in the north thank god, visual inspection is a good start if there are no codes.

 

[ivin74]

OK, here's the newest weirdness. After filling the tank, there is a distinct gasoline smell for a day or so, until it burns some out of the tank. It's raw gas smell, not burned, and it only happens upon fill-up. Once the needle starts to move, the smell goes away.

I realize that the possibility of filling too full exists, but I'm kinda **** about gasoline fill-ups, so I rarely push it past the first or second fill nozzle shut-off, if that far.

I suspect it has something to do with a vent hose, etc., but don't know where to begin looking. When doing the brake line replacement, I did look over the underbelly and tanks but didn't see any glaring problems there.

Is this a common problem like the brake line? Anyone else run into something like this?

Check the vent hose and valve by the charcoal canister, its top of the rear differencial.

 

[Randy Whistler]

Do you have any codes?

No, no codes.