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Old 03-26-2013, 07:52 PM   #1
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gas smells strong from exhaust

Why do i smell gas odor when car is idling
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Old 03-26-2013, 07:55 PM   #2
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do you have cats?
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Old 03-26-2013, 08:28 PM   #3
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I think they are still there
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Old 03-26-2013, 08:40 PM   #4
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Is it like a foul rotten egg smell? Your cats might have gone bad.
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Old 03-26-2013, 09:33 PM   #5
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These cars have a heavier exhaust than newer cars, you could check timing. Check spark plugs. Do you have smoke at all? Burning oil? Check to see if you have cats. Do you have your emission stuff still on?
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Old 03-26-2013, 10:10 PM   #6
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I had a pretty bad vacuum leak on my old fox body and it wreaked of gas for months before I could finally find it. I also never plugged up the EGR properly when I bypassed it which also was causing it to load up a bit. Are you throwing any codes or have a check engine light on? My O2's were going out and was causing it to run rich as hell for awhile before I replaced them also.
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Old 03-26-2013, 10:17 PM   #7
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Vacuum leak will generally make the engine run lean.
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Old 03-26-2013, 11:09 PM   #8
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Its just like its burning rich ,i'll check to see if my cats are still on in the morning,

---------- Post added at 10:06 PM ---------- Previous post was at 10:04 PM ----------

I dont have any codes on it ,or check engine lights

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I'll check for vacuum leaks and see what i have

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The cats are right below the manifold right !
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Old 03-27-2013, 01:17 AM   #9
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Quote:
Originally Posted by Billymich View Post
Vacuum leak will generally make the engine run lean.
You'd think, but mine ran rich as hell about 60% of the time. It would run OK and wouldn't smell and then would get into this real low idle that made it sound like I had a cam but would just run very rich for awhile. My fiance's friends could always smell my car when I pulled up to her sorority house because it WREAKED of gas before I found the leak lol.
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Old 03-27-2013, 01:31 AM   #10
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Your cats will be on the mid section of your exhaust. After your O2 sensors
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Old 03-27-2013, 10:17 PM   #11
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Billymich ,That sounds just like what is happen with mine !
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Old 03-27-2013, 10:46 PM   #12
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Find a leak then, I just know that when I had a vacuum leak on my upper intake, my idle was around 1400
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Old 03-28-2013, 06:37 PM   #13
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I'm curious as well. Mine does the same thing. No cats here tho and a lot of after market stuff.
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