Gas fumes in car after CCV replacement - Kia Forum

 
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post #1 of 5 (permalink) Old 09-14-2018, 04:57 PM Thread Starter
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Gas fumes in car after CCV replacement

Hi, everyone. I have a 2009 Spectra5 which I've owned since new. It's been basically trouble-free up to this point, and I'm very happy with it.

The local Kia dealer replaced the canister close valve today. To do this, they had to "drop the fuel tank," which is accessed behind/under the rear seat. When I picked up the car today after the repair, the interior absolutely reeked of gas fumes, so bad I could hardly stand driving it and felt sick. It smelled like they had poured the whole tank of gas in there. The exterior, including the fuel tank area, didn't smell at all.

After half an hour of airing out (driving with all windows open and vents running full blast), there was no change, so I went back to the dealer. The service writer said this is perfectly normal, that the fumes come into the car as soon as you "break the seal" to remove the tank, and it just takes awhile to dissipate. I find it hard to believe that this could be normal.

A friend who is a professional mechanic says my car should not smell at all after this repair. He thinks most likely they spilled fuel in the car, and that the carpet (or whatever they spilled the fuel on) will need to be replaced. The smell is strongest in the area of the rear seat, particularly coming up through the split in the rear seat.

What do you Kia experts think? Would you expect the interior of a car to smell (very strongly, for a long time) of gas fumes after replacing the canister close valve? Thanks for your help.

LW

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post #2 of 5 (permalink) Old 09-15-2018, 01:48 PM
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Because there isn't a smell of gas outside there shouldn't be an ongoing leak...

The smell of gas will dissipate with time even if they accessed the top of the gas tank...

If the smell continues then they have a problem with a leak and also with the sealed access cover under the back seat...

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post #3 of 5 (permalink) Old 12-17-2018, 09:01 AM Thread Starter
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Thanks for your reply, and sorry for not responding sooner. It turned out that they did spill fuel inside the car during the repair, under the rear seat. After I pitched a fit, they paid to have it cleaned by a detailer, and that took care of the fuel smell.

Unfortunately, replacing the CCV didn't fully solve the original issue (difficulty filling the gas tank; check engine light), so it's been pretty frustrating.

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post #4 of 5 (permalink) Old 12-17-2018, 11:11 AM
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If you have the habit of "topping off" the gas after the tank is filled it can spill over into the carbon canister and damage it causing a block to the gas fumes and gasoline to back up...
Just a thought...
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post #5 of 5 (permalink) Old 12-20-2018, 11:40 AM Thread Starter
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Thanks for the suggestion. I never topped off, always stopped at the auto shut-off.

Everything was fine, car was running great, no problems refueling. Then I took it to the dealer for routine maintenance and timing belt & drive belt replacement. Immediately after that (first refueling) I could no longer fill the tank -- put in half a gallon, shut off, try again, shut off, etc.; then the check engine light came on. I took the car back and they replaced the CCV and blew cobwebs out of a hose. I can refill at most pumps now, but I have to let the gas flow slowly or it shuts off. No check engine light for 2+ months.

I've noticed the car doesn't run as well as before the work; acceleration isn't as good, almost feels like when a motorcycle is running rich. Could that be related to the timing belt replacement or the fuel situation? And is there any way the belt replacement or other service work could have caused the fuel system problem, or was it just a coincidence?

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