Stinky smell from Bonnie ?? - Page 2 - 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 10-05-2002, 01:28 PM   #11
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I've had this smelly rotten egg/sulphur smell for about a month now.....started soon after replacing my O2 sensor. I installed a Bosch, but I'm thinking I'll just go to the dealer and get the OEM part to see if it makes a difference.......another thing I've noticed that leads me in this direction is a slight hesitation (almost dies) sometimes right after I start the car, then the idle evens out. Sounds very much like an O2 sensor to me. Sorry for dragging this post out, but I remembered someone else having this smell, which made me start thinking about it myself. Anyone else think I'm right here?
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Old 10-05-2002, 08:55 PM   #12
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If this was the case you wouldn't smell rotten eggs in the car unless the exhaust was lofting through a window!
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Old 10-07-2002, 01:06 PM   #13
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Egg stink in a newish car is almost always a bad cat. Maybe a nearby shop will put your scoot on an exhaust gas analyzer for cheap and help with the diagnosis.
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Old 10-07-2002, 01:34 PM   #14
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Wouldn't u also get a rotten egg smell if you're burning engine oil ?? I have yet to find the heater hose and all that Rat was talking about.. but I don't think I will have the time till the weekend...
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Old 10-07-2002, 03:16 PM   #15
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It'* not the plugged up hose, and it'* not the Cat. It was new in May.....this all started very soon after the O2 sensor was changed, and it'* not all the time......depends on how I drive. Happens more around town on short trips. Did a 120mile round trip yesterday on I-5, and it didn't smell when I got home.
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Old 10-07-2002, 03:25 PM   #16
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Same here... I don't smell it most of the time.. and if I drive hard.. I can smell it once in a while.. That'* why I was thinking if it was burning oil...( and in which case.. that means I have a leak/improper seal somewhere )
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Old 10-07-2002, 03:28 PM   #17
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I know I'm not burning oil, either......this thing is fit as a fiddle. I know my smells, and it ain't that. That'* why I keep leaning towards the O2. I replaced it with a Bosch right before this started. I'm really tempted to go back to a new AC Delco sensor.
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Old 10-07-2002, 07:17 PM   #18
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I agree w/willwren--definitely not oil burning--and even if it was--depending on how it was burning-there would be some kind of bluish smoke. I think it could be the cats or something w/the emissions--which leads to the exhaust.
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Old 10-07-2002, 08:39 PM   #19
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And in my stock exhaust which includes a brand new cat, is an......O2 SENSOR! I'm gonna change that bitch.
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Old 10-07-2002, 08:44 PM   #20
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CHANGE THAT BITCH!!!!
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