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1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-28-2005, 02:02 PM   #1
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My 88 SSE shake at low RPM/ WHEN I'M DRIVING AT 45 60 MPH. WHEN I GIVE IT A LITTLE GAS.. WHAT THE HELL IS THAT. ????
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Old 06-28-2005, 02:08 PM   #2
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Need more information, but first thing I'd think would be wheel balance
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Old 06-28-2005, 02:50 PM   #3
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For clarification, the car is smooth as glass at 50mph, until you increase throttle. Then it starts shaking badly? What about at lower speeds?


-justin
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Old 06-29-2005, 04:55 AM   #4
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hrmmmm..... not firing good is my bet. you would only notice it at those speeds under those conditions because of the TCC lockup putting a direct connection through. when was the last time you did spark plugs, wires, etc?
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Old 06-29-2005, 03:52 PM   #5
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Classic symptom of secondary ignition problem - plugs, wires, coils.
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Old 07-01-2005, 02:15 PM   #6
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NOW IT SHAKES AT 60MPH.... DO i NEED NEW ENGINE SUPPORTS
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Old 07-17-2005, 05:39 PM   #7
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Few weeks ago my Bonneville also shakes at low RPM.
I only changed spark plugs and wires and the problem was gone.
After changing the wires i controlled them and found out that two of them shows a damaged isolation - this is right enough for shaking ure ride cause it* also possible that uve got another problem like coils,...

greets,
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Old 07-17-2005, 05:54 PM   #8
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Quote:
Originally Posted by TDRAL107668
NOW IT SHAKES AT 60MPH.... DO i NEED NEW ENGINE SUPPORTS
does it shake all the time or at slow speeds 2??
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