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1998 Buick Skylark Strong gas odor inside car

Tiny
MIKENDEBY
  • MEMBER
  • 1998 BUICK SKYLARK
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 175,000 MILES
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!
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Sunday, August 2nd, 2009 AT 5:00 PM

3 Replies

Tiny
MHPAUTOS
  • 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)
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Monday, August 3rd, 2009 AT 1:53 AM
Tiny
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.
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Monday, August 3rd, 2009 AT 10:30 AM
Tiny
MHPAUTOS
  • 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)
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Monday, August 3rd, 2009 AT 4:59 PM

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