Fuel Smell

kfanazini · 05-05-2013, 05:03 PM

I have finally decided to get to the bottom of the fuel smell issue in my 86 944. I get a slight smell of fuel around the filler neck inside the cabin.

Removed the cover from inside to expose the various hoses and was able to get my rather large nose very close and confirmed the smell is coming from that area. (Yes this is what my Friday nites have come to.)

The sending unit has been checked, so has the fuel pump and hoses. No wet spots or fuel smell.

I have not yet checked the charcoal canister. Although, there is a line that either goes in, or comes out of the charcoal canister that ends under the drivers door right next to the detent mark for the jack on the rocker. I don't if that is related to my problem. Can anyone confirm if this is a vent or does it need to connect to something.

Everything under the hood in the area of the charcoal canister looks like it is connected correctly.

I have seen the stuff on Clarks and have done a search and have read a lot of posts on the subject.

Anyone have any experience with this issue and care to add?

kfanazini · 05:13 PM

Characoal can

kfanazini · 05:14 PM

Line from can ending under drivers door.

patkeefe · 05-05-2013, 05:14 PM

Our 968 has that smell also. I suspect it is from the filler neck, between the filler door and the tank. I haven't worried enough yet to do anything about it, however. It is on my list.

Grandad#3 · 05-05-2013, 08:21 PM

Hi Pat, Simple solution. Only drive the cab in good weather and keep the top down you'll not smell the gas that way. More likely than not the smell is coming from the filler neck section in trunk. It tends to leak at the connections.

Cheers,
Larry

Jrboulder · 09:47 PM

There is an aluminum filler neck that connects to the tank by a large diameter cloth reinforced rubber hose. This rubber hose disintegrates over time (possibly due to the ethanol in our gas

) and slowly weeps gas. when you fill up "til it clicks" gas is all the way at the top of the tank and at the level of this hose.

In this diagram it is hose number 29 (951-201-319-00 NLA)

Obviously, this is just one of the many problems associated with continued operation of a car possibly beyond twice its design life.

This part is NLA and the only source currently is used.

I'd recommend only keeping the tank below 3/4 all the time and using ethanol-free gas whenever possible.

One time I filled up my 84 to the top and went home and parked on a street with a moderate crown and the car was angled about 7 degrees to the right. You guessed it, I came out and fuel was running down the street. I sold the car after fixing that.

mytrplseven · mytrplseven's Garage

Pull up the rear cargo carpet and the cover for the fuel tank fittings. They're under the cargo floor. See if it smells in there. You might have a leak at the fittings or the fuel level transmitter. Good luck