98 SSEi Transmission Problem? Shudder?? - 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 01-08-2012, 05:46 PM   #11
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if its a heavy vibration its not plugs/wires. you said its at 55-60 but is it as you are letting off and the tcc would be starting to kick in, or is it before it locks or after as you are cruising?
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Old 01-08-2012, 06:07 PM   #12
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It did happen to me today at about 40 mph while I was cruising up a hill. I think it is when I am cruising that I have this problem.
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Old 01-08-2012, 11:24 PM   #13
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Hey Kyle if you go to an automotive supply store you should be able to pick up half shafts for around $180.00or so but that is defietly what it is . you may also need front wheel hubs which are the front wheel bearings but definetly the half shafts . I know here in Ontario I put a set on my 94 SSEi in the summer and I paid $120.00 each. but as I said you need half shefts and a computer diagnostic probably wont trll you that.if you have the right tools it only takes about a half hour to an hour per side they are pretty simple to do.glad to help Eric.
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Old 01-09-2012, 07:13 AM   #14
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bearings and axles give you constant vibration and noise that doesnt seem to be his problem. i think i would watch the tach. when it happens hit the brake to see if the rpm goes up and the problem goes away with the TC unlocked.
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Old 01-09-2012, 07:46 AM   #15
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I agree with JW. First thing I would do would replace plugs and wires, along with looking at the contacts where the plug wires touch the coils. I have had the same problem, ended up being a bad plug.

The key thing you described which points to a bad plug/wire is that going up hill the problem showed itself. That is exactly what I had with a bad plug.
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Old 01-09-2012, 10:37 AM   #16
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Ya a bad plug/wires is what I think it might be and replacing these will be my first step. They should be replaced anyway because they are the original ones and I am at just over 100k.
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Old 01-09-2012, 12:07 PM   #17
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My problem is when I have about 2lbs boost when I'm just giving it a little gad to go up a grade or hill without really getting into the supercharger all the way.When it starts bucking a little I let off a lttle or give it alot ofgas and it goes away.It kinda reminds me of driving my Goat with Tri-Power. your either running 2bbl or your running 3-2bbls wide open, don't play around in the middle.I asked this question on here when I joined and everybody told me it was my wires/plugs. Changed all that and it'* still doing it over 2 years later. I just live with it or give it more than 2lbs boost.
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Old 01-09-2012, 12:40 PM   #18
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I bought a left side rem-half shaft a O'Reiley'* $59. Lifetime guarntee.The cv-joint boot was getting bad so I just replaced the whole half shaft.
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Old 01-09-2012, 12:46 PM   #19
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mrpontiac, did you inspect the coils and icm terminals for corrosion when you were there? that can cause the same kind of issues.
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Old 01-09-2012, 01:11 PM   #20
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mrpontiac, that sounds a lot like what I'm dealing with. Do you still have the problem even after replacing your Cv-joint?
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