Sputtering - 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 08-15-2007, 11:54 PM   #11
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sparks seem a little far fetched from your viewpoint. please elaborate.
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Old 08-16-2007, 12:17 AM   #12
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if you watched the video that i have posted. in this instant i held the gas a lot longer. the psi goes up and the engine is in the high rpm'* but it aint going nowhere and for the first time i heard i fffffffff...and so i looked back and i saw orange glow flying out of my car
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Old 08-16-2007, 12:18 AM   #13
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That would be your catalytic converter burning up. Happened to my dad in his '85 Chevy van. Most likely why you are sputtering the way you are.
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Old 08-16-2007, 11:36 AM   #14
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you think the sputtering in the whining is from the cat?
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Old 08-16-2007, 12:24 PM   #15
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Well, your new clue makes me think you should be looking at your O2 sensor and your CAT, at the very least. A bad O2 sensor will certainly cause loss of power and a clogged or failing CAT just makes it worse.

I can't say that those are the only problems, but until you address them, it will be hard to verify what else may be wrong.

Do you have any way to get a code scan? Access to anyone with an OBD1 scanner?
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Old 08-16-2007, 03:56 PM   #16
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yea there * a code 1-3-1 that keeps poppin up
something to do with the gears
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Old 08-23-2007, 06:17 PM   #17
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well i appreciate the help guys but i found the REAL problem...EGR valve :/. Got her fixed. now shes screaming down the streets
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