PLEASE HELP.. 92 SSE Engine Shaking - 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 12-05-2007, 01:30 AM   #1
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Default PLEASE HELP.. 92 SSE Engine Shaking

I have a 92 SSE. I've been having problems with my car cutting off while sitting at lights or in drive thru'* so i figured it was time for a tune up. I had my spark plug wires changed last week and 2 days later my whole car started shaking/ vibrating under the hood. It is sort of loud and noticable to people outside the car. It doesn't do it when I'm accelerating but as soon as i stop it starts again. I don't really wanna pay $60 for a diagnostics test and I don't know much about cars. Is there a certain type of wires you shouldn't use or a way I can tell if their hooked up wrong. I have 3 seperate coils if that info is needed. Does anyone have any idea as to why this may have started. Any info would be greatly appreciated. Thanks.
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Old 12-05-2007, 07:09 AM   #2
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Renee,

I know a little have you checked to see if they are all on tightly. They kinda snap in place and if not they will cause a sort of misfire. That could cause a shake. Try that, make sure your car is off though. If you hear one snap in place you will know that was probably it. If that didn't work then one of the higher up guys can help you.

Jackie
1992 Bonneville SE "My green frog"
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Old 12-05-2007, 10:30 AM   #3
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Default Hey Renee

Sounds most like a wire/plug problem to me. As Jackie says...make sure all of the wires are on good and double check to make sure you put them on correctly. Do a search in this forum for plug wires and you should find some info on it. I know I saw yesterday a pic of where the wires go. These are tough engines but they do need a GOOD wires/plugs are you will get a shake. I have had this problem in the past. We are on our 5th Bonnie.
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Old 12-05-2007, 11:12 AM   #4
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Some have had some problems with Taylor wires being bad out of the box. Did they change plugs also? Our cars don't like Bosch spark plugs, either. Also, check where the plug wires attach to the coil packs for rust or corrosion on the coil pack terminals.
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Old 12-05-2007, 11:35 AM   #5
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This may not have anything to do with the wires.

The harmonic balancer could be faulty. Check the harmonic balancer for cracks around the bead of rubber around the rim. Lemme see if I can find a pic....
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Old 12-05-2007, 11:39 AM   #6
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If the car runs smoothly at higher rpms and accelerates smoothly but shakes at idle, your problem might be a simple vacuum leak. Check out all of the vacuum hoses and make sure that none of them are disconnected or crumbly, or rotted through. Start with the largest one that runs from the firewall side of the intake manifold to the power brake booster.
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