Leaking exhaust? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-03-2005, 12:17 AM   #1
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Default Leaking exhaust?

Im sure this isnt a normal thign to have what i assume is gas leaking from my exhaust noticed it today while at gas station. I already replaced pcv valve 02 sensor new spark plugs and wires. I would think first thing wrong air/fuel ratio but what else would cause that. It may also lead to my bad mileage i still get about 15 mpg with all the tune ups i have done. Any advice is appreciated
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Old 08-03-2005, 12:24 AM   #2
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gas out the end of the tailpipe? doubt it, smell it though

its water...

how do you drive to get the 15mpg...
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Old 08-03-2005, 12:44 AM   #3
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oh its water? No matter how i drive the mileage is pretty bad i dont understand why. That is a mix of highway and city though. I drive on the highway to work everyday but drive jsut as much in city.
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Old 08-03-2005, 12:45 AM   #4
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i get 16mpg on 25% city and 75% highway.....and i drive HARD
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Old 08-03-2005, 01:41 AM   #5
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hhmmm idk could it haveto do with my fuel pressure ?
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Old 08-03-2005, 01:50 AM   #6
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Quote:
Originally Posted by LuxuriesPremier
hhmmm idk could it haveto do with my fuel pressure ?
do you drive with your foot to the floor? or do you granny it? or somewhere in-between?
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Old 08-03-2005, 02:23 AM   #7
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well i obviously tried to drive liek a granny but it didnt seem ot help at all so ill drive normal to heavy sometimes. WHat should my fuel pressure be at idle and at like 2000 rpm because i wanna test it. im also goign to check the resistance on my coils. My car still feels like it has lost power.
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Old 08-03-2005, 02:39 AM   #8
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Quote:
Originally Posted by LuxuriesPremier
well i obviously tried to drive liek a granny but it didnt seem ot help at all so ill drive normal to heavy sometimes. WHat should my fuel pressure be at idle and at like 2000 rpm because i wanna test it. im also goign to check the resistance on my coils. My car still feels like it has lost power.
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Originally Posted by jr's3800
I think on the 94-95 SSEi is should fall in the 41-47 psi range...
i believe the pressure would remain there, no matter how many rev'* ya got into it, the only thing building up the pressure is the fuel pump...
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Old 08-03-2005, 07:28 AM   #9
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Luxury... When you stomp on it does the car seem to be a little sluggish and you can hear back pressure? Poor fuel mileage like you are describin...higher temps..like you've had.

How is that catalytic converter? Does it rattle or make any noises?
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Old 08-03-2005, 10:25 AM   #10
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Quote:
Originally Posted by BillBoost37
Luxury... When you stomp on it does the car seem to be a little sluggish and you can hear back pressure? Poor fuel mileage like you are describin...higher temps..like you've had.

How is that catalytic converter? Does it rattle or make any noises?
or turn to a glowing red color?
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