Fuel filler pipe ? Fuel pump assembly under the access port in the trunk floor ? Fuel Pressure Regulator on the rail under the engine beauty cover ?

 

Thanks, will check them out.

Took the cover off earlier and still nothing.

One thing different that I just remembered. A week ago, by the gas gauge I estimated that the car should take about 14 gallons. It clicked off at about 11 1/2 and thinking it was still not full, I added some more. Well, it was full and it ended up with a little more in it, which I know is not good. Possibly related?

 

MAYBE a leak at or near the EVAP charcoal canister and its solenoids and hoses.

Generic EVAP system - - - -

 

Never ever fill beyond the first pump auto shut off. It is very possible that your overfill caused the spurious odor. If you have no error codes (check with a scanner) and no detectable leaks then I would say you have your source.

Another piece of free advice is never fuel the car with the engine running. This practice will eventually trigger a CEL with evaporative leak error code. You might fuel up 100 times with no problem, but then again… When I worked at the Cadillac dealer we had plenty of these to chase down. The first 2 were free, then we charged an hour labor. We didn’t have many 3rd calls.

I hope this resolves the issue for you.

 

Well the next time I fill up and it shuts off what I feel is not fully full, I'm checking the Gas Gauge like I should have.

Good advice on not keeping the car running while refueling. This is something I never do.

Next post will explain the cause, We found it.

 

Appreciate all the replies, but we found the cause. As long as I don't have two problems, lol.

I brought it over to my friends garage, put it up on his lift and we found a Corroded Fuel Line. It rusted right after the curve that goes from along the under body and up to the engine compartment. There is a wide rubber clamp there and it corroded both before and after the rubber clamp.

What is puzzling to me is why. This is a Southern Virginia car that only has 71,000 Miles on it, as far as I know always garaged and seen very little snow. I've owned it 4 years and got it when it only had 57,000 Miles. About 98% of the under carriage is very clean, but dang if the Fuel Line didn't rust. It is presently bleeding fresh gas and is now parked until it can be repaired.

With all that said, what happens to Northern cars with rock salted roads a good part of the winter?

 

With all that said, what happens to Northern cars with rock salted roads a good part of the winter?

We do the best we can to keep our undercarriages clean without succumbing to frostbite.
Even with valiant efforts, we replace fuel, brake, and power steering lines as they are consumed by wintertime road chemicals.

The smart ones lease or trade-in after 4-6 years.

 

Glad you found it. Congrats!!

 

This has reminded me of Ralph Nader. He did a lot of controversial things including changing the back end of Corvette's back in the 70's. But one of the things he should have demanded, in my opinion, would be mandatory Stainless Steel Brake and Gas Lines. For cars that cost multi-1000's of Dollars, how much more would a car cost with them. Should be only about a hundred or two more.

This is also a good reminder to everyone out there. Put your car on a lift and have it checked out now and then.

 

Mine rusted through in that same location, I needed the vehicle so brake line and couple compression fittings got me back on the road. Next up on mine was the vapor return line failed that got converted to rubber.