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.

Backfiring?

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Old Jul 3, 2003 | 11:23 AM
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Default Backfiring?

Hi
I've got a L36 3800 series ll and i just had my last tune up along with replacing the intake maifold after hydrolock. So the engine is fine now but my question is before and still right now when i start my car or rev my engine slightly it sounds like it backfires... I'm not sure if this is a common thing for this type of engine or i have a serious problem but i just got new plugs and a new O2 sensor. Any help would be greatly appreciated!

Thanks in advance
Tubbs
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Old Jul 3, 2003 | 08:28 PM
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Tubs, can you scan for codes? That'* one of those problems that will be nearly impossible to track down without scanning first.
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Old Jul 7, 2003 | 05:03 PM
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Ya it does occasionally happen when i let off the gas and how do I check the codes on a bonnie i know on my civic i can check it on the ecu? thanks for the replys
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