Fuel Pump Gasket/O-ring

[Trogdor636]

So in the Summer I would smell gas here and there if I left my Pathy in the garage, but today I was unloading something out of the back and got a pretty big smell. Now I did get gas today, but still figured it was time to check it out. I popped the fuel pump panel in the hatch and this is the cleaned up version of what I found. Is this pretty much my issue? Also, what the heck is that connector for in the other pic? No wires are even near that area. And last question, my local parts doesnt have it in stock, but there are 3 different options. There is a fuel pump gasket, a fuel tank lock ring, and a fuel pump tank seal. WTF? They all look like gaskets in the picture, so which one do I need? Thanks for any help.

 

 

[1994SEV6]

AHHHHHH!!! Me too!!! My truck has been smelling like gas forever. Whenever I fill it up, it reeks! I thought it was because I was dripping some on my fender flares or something. It's probably an o-ring or gasket. But I guess you're asking which one.

[Trogdor636]

AHHHHHH!!! Me too!!! My truck has been smelling like gas forever. Whenever I fill it up, it reeks! I thought it was because I was dripping some on my fender flares or something. It's probably an o-ring or gasket. But I guess you're asking which one.

 

Well I'm not entirely sure the fuel pump always looks "moist" around it. There was a lot of crud built up, and I'm not entirely positive it was that way because 17 years of dirt found there way up there, or the gasket/oring is leaking so the dirt stuck. I found a gasket at Autozone, even though the girl behind the counter assured me they didnt carry it. Man I hate Autozone.

[sewebster]

Just got finished replacing the gas tank on a Corolla today... Anyway, I'm not sure that is your problem... it doesn't look too bad to me... shrug.

[JamesRich]

I don't have a picture of mine but it's just lines and wires coming out of the layer of mud! Lol! I thought my tank was leaking too for over a year. I finally found the return line from the front was leaking. I put a new piece of hose with two clamps on each side and that fixed it. Also if it's worse when you fill it check your fill neck. When I first bought my truck the small vent line for the filler tube was loose and leaking and it smelled really strong when it had a full tank.

James

[Trogdor636]

Yea mine was basically a caked on layer of dirt. I'll check the filler lines and vent lines when its not raining, maybe I'll even drop my tank down when I'm almost on empty.

[Alkorahil]

hmmmm

 

remember, if you ever pull/replace your fuel pump, get a new O-ring, dont re-use the old one.

 

It could also be your evap cannister not allowing pressure to equilize.

These cannisters are old and are an old design now.

On the evap cannister there are 3 hoses, the one closest to the firewall goes to the fuel tank.(its labelled too) This hose could be clogged. This hose goes to the fuel sender unit. remove it carefully to avoid breaking the sender and inspect on that end as well.

worth a look

[Trogdor636]

hmmmm

 

remember, if you ever pull/replace your fuel pump, get a new O-ring, dont re-use the old one.

 

It could also be your evap cannister not allowing pressure to equilize.

These cannisters are old and are an old design now.

On the evap cannister there are 3 hoses, the one closest to the firewall goes to the fuel tank.(its labelled too) This hose could be clogged. This hose goes to the fuel sender unit. remove it carefully to avoid breaking the sender and inspect on that end as well.

worth a look

 

Sounds like something to check as well. Its raining here and its my DD, but I'm hoping this weekend I'll be around empty and I can maybe drop the tank down and get a better look.

[amo1dun]

just replace the seal...and see if the smell stops. It takes 5 minutes to swap out, just unscrew the sending unit and lift it out, swap seals and screw it back in.

a bad tank seal = smell of gas