1998 Buick Skylark Strong gas odor inside car

1998 BUICK SKYLARK

175,000 MILES • 6 CYL • 2WD • AUTOMATIC

MIKENDEBY

MEMBER
2 POSTS

Strong gas odor in engine compartment on passenger side, with gas odor overpowering us inside car. No other issues with the car, and this just recently started. We have replaced the gas cap, and since the car runs good, don't suspect the catalytic converter. Please help!

Aug 2, 2009 at 5:00 PM

MHPAUTOS

✓ASE Certified Mechanic
31,937 POSTS

Hi there,

you should be looking along the fuel lines for a leak, start at the tank and work forward.

mark (mhpautos)

Aug 3, 2009 at 1:53 AM

MIKENDEBY

MEMBER
2 POSTS

We have traced the fuel lines all the way from the tank to the engine and there are absolutely no detectable leaks any where on the car. Another problem is, the extreme odor build-up does not happen often. We mainly notice it happen if we have to sit and idle for a period of time, and then drive. Still, we find no leaks. It is as though something does not open to release fumes every time, and a build-up of the fumes backs up into the cabin when this happens.

Aug 3, 2009 at 10:30 AM

MHPAUTOS

✓ASE Certified Mechanic
31,937 POSTS

Hi there, then this will be the tank venting system, i will check for a carbon canister filter in the system that may me faulty and report back.

mark (mhpautos)

Aug 3, 2009 at 4:59 PM

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