problem with my 96 olds 88 - 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 04-12-2011, 08:35 AM   #1
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Default problem with my 96 olds 88

i have a 96 olds 88 and about 2 weeks ago i could feel a vibration while idling. while driving the vibration got worse. then last weekend i noticed what i thought was a misfire while driving. it started on the freeway going about 70 in overdrive. when i accelerated it stopped. it did it again when i stopped accelerating and was driving at a constant speed. i replaced the plugs and wires a few months back and cleaned the MAF the other day. the fuel injectors are at normal ohms also. i've had it on 2 different diagnostic machines and they both didn't show and misfire or codes. has anyone else had this problem?
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Old 04-12-2011, 08:58 AM   #2
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Test your coils.
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Old 04-12-2011, 11:25 AM   #3
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i just tested my coils. when i tested the primaries one of them was reading from .3 to .8 ohms. it was all over the place and wasn't giving me a constant reading. i'm gonna replace it and hopefully that will solve my problem
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Old 04-12-2011, 11:33 AM   #4
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Kind of sounds like you have a issue there. Willing to bet if you heat it up it will fail.
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Old 04-12-2011, 12:23 PM   #5
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i replaced the coil pack and went for a test drive. the surging/hesitation didn't happen. i think that problem is solved. but the engine vibration is still there. any ideas on what that could be?
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Old 04-12-2011, 01:48 PM   #6
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Does the vibration follow engine RPM, or the speed of the car?
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Old 04-12-2011, 02:47 PM   #7
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the speed of the car. when it'* idling you can feel it then when i shift into gear it'* vibrates harder. i feel it in the streeting wheel and on the accelerator while driving and when it locks into overdrive it seems to be worse. i'm begining to wonder if the cluch plates are slipping. i'm thinking of changing my tranny fluid and filter and see if that helps
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Old 04-12-2011, 03:43 PM   #8
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Check for play in the axles.
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