lifter? push rod? something else? - Page 3 - 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 04-11-2010, 02:59 PM   #21
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If you have a spare ICM, swap it and see if it helps. Coils can die at any time. A rod bearing would be a knock and be low on the engine.
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Old 04-11-2010, 03:29 PM   #22
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ya ill swap that out in a little while and ya idk its anoying i cant figure out whats wrong
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Old 04-11-2010, 03:36 PM   #23
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Hope that fixes the sputter problem. Because after this your getting in to more mechanical problems. The metal shavings have me thinking a possible cam bearing, but would like to hear from Bill on his thoughts. Need to rule out everything else before we get to that point.
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Old 04-11-2010, 05:09 PM   #24
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that helped but what ever that knocking is its keeping it from its full potential
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Old 04-11-2010, 08:33 PM   #25
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Well....... while it is tough to internet diagnose some stuff, I frequently get gut feelings. Gut still says chipped piston. I know what you guys are thinking.. but how'* that Bill?

Chipped piston edges heat up and cause predetonation. That causes the car to run horribly. Won't affect a compression test because of how our rings seal and it'* easy enough to have happen.

It'll make some noise and mangle one plug, which led me to my thoughts on it.
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Old 04-11-2010, 08:35 PM   #26
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You will need to rent a bore scope and look inside that cylinder.
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Old 04-11-2010, 10:09 PM   #27
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and how much mite be one of though and were would i rent it at?
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Old 04-11-2010, 10:15 PM   #28
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A auto parts store should have something. I have no idea what they will charge.
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Old 04-12-2010, 08:56 AM   #29
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ok how much to you think a stock rebuild would cost?
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Old 04-12-2010, 09:19 AM   #30
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Of the engine? Bill would know this, but you may be better finding a good lower end and swap it out. But lets find out if this is the problem first.
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