I hear a slight popping when engine is under high load - 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 11-01-2007, 05:27 PM   #11
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Define performance plug set. Do you feel anything when it pops?
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Old 11-01-2007, 05:30 PM   #12
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the jacobs high energy core 8.5mm plug set from intense. and the only thing i feel it a little bit in the gas pedal, but no real hesitation in acceleration.

i scanned the car and there are no misfires happening at all, even then the popping occurs.
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Old 11-01-2007, 05:31 PM   #13
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Ah, plug wires.
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Old 11-01-2007, 06:09 PM   #14
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Motor mounts?
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Old 11-01-2007, 06:14 PM   #15
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not sure if that would be a possibility, kind of hard to explain the sound.... how hard/expensive is it to replace the motor mounts?
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Old 11-02-2007, 02:17 PM   #16
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pcm and wires did';t help... i am pretty much lost.
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Old 11-02-2007, 02:21 PM   #17
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Did you regap the plugs to .05 or .055?
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Old 11-03-2007, 01:49 PM   #18
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i regapped the plugs to .55
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Old 11-03-2007, 06:31 PM   #19
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Any ideas left as to what it may be? i normally hear it at wot when the car downshifts, or when first accelerating and then less prevelant after that. it still pops in second gear at 80 mph and wot. i have no clue what it may be, and maybe the popping is related to the KR i am am getting? i'm not sure on this but i'll just keep trying to figure it out.
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