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Car shakes at idle....

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Old 11-11-2002, 09:33 AM
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DaddyO
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Default Car shakes at idle....

When my car is idling (clutch in or out) it shakes pretty bad. When I give it a little gas, the shaking goes away. Any ideas on how to solve this?
(Engine is stock.)
Old 11-11-2002, 10:24 AM
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Alwyn678
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Default Re: Car shakes at idle.... (DaddyO)

mine shakes as well but it is the cam...........That shakes the whole car :reddevil .....


[Modified by Alwyn678, 9:24 AM 11/11/2002]
Old 11-11-2002, 10:29 AM
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Default Re: Car shakes at idle.... (DaddyO)

I would start checking the condition of every vacuum hose. Make sure it's routed to where it is supposed to go, and make sure where it is going is working correctly.
I problem with the vacuum lines of the headlight system can cause a poor idle in a car.

To check the lines, use a pair of pliers and pinch them closed near the carb. If the idle smooths out, or you get a better reading an a vacuum gage, then you have a problem with the line or device it's connected to. You can continue to move down the line with the pliers to try and determine the source of the problem.
Old 11-11-2002, 10:50 AM
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DaddyO
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Default Re: Car shakes at idle.... (BSeery)

Thanks. I'll start with the vacuum lines.
Old 11-11-2002, 12:04 PM
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KJL
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Default Re: Car shakes at idle.... (DaddyO)

Also, check your timing and idle mixture. If you are rich or lean that can cause the engine to run rough in the idle circuit.
Old 11-11-2002, 12:06 PM
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Default Re: Car shakes at idle.... (KJL)

How do I do that?
Old 11-11-2002, 07:38 PM
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VetticusSupersonicus
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Default Re: Car shakes at idle.... (DaddyO)

I've had this sort of problem before. Check to see if all of your plugs and wires are OK -- you might have a miss at idle.
Old 11-15-2002, 08:20 PM
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The Money Pit
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Default Re: Car shakes at idle.... (Alwyn678)

You mean a Vette isn't supposed to shake at idle??????????
Old 11-15-2002, 08:36 PM
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R1234
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Default Re: Car shakes at idle.... (DaddyO)

I had a similar problem and it turned out to be one bad spark plug, These plugs were brand new.
Old 11-15-2002, 09:01 PM
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MotorHead
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Default Re: Car shakes at idle.... (68rdstr)

Mine shakes at idle too, as a mater of fact so do the windows in my garage :lol:

On a serious note I too have had a bad brand new plug, when the motor is cold start it up and touch all the header pipes if one is cool it's not firing. :D


[Modified by MotorHead, 8:04 PM 11/15/2002]
Old 11-15-2002, 09:15 PM
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'79ProwlerOrange
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Default Re: Car shakes at idle.... (MotorHead)

Mine is cammed as well. i love the shake :D i was acutally considering doing solid motor mounts, but then i decided that stress cracks arent something i want to deal with. is you idle just low? mine shook pretty bad a while ago, adjusted the carb for a higher idle, and presto. im idleing at between 600-800 now, depending on if its warm or not.
Old 11-16-2002, 12:28 AM
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Colin
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Default Re: Car shakes at idle.... (DaddyO)

When my car is idling (clutch in or out) it shakes pretty bad. When I give it a little gas, the shaking goes away. Any ideas on how to solve this?
(Engine is stock.)
What's your idle RPM? I'd start there. If it's in spec check for bad vacuum lines, spark plugs, wires, coils or anything else that will cause a misfire.

Colin
Old 11-16-2002, 08:40 AM
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Cajun99
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Default Re: Car shakes at idle.... (Alwyn678)

mine shakes as well but it is the cam...........That shakes the whole car :reddevil ....
Quit braggin' there Big Al :smash: :smash: :lol: :lol:
The only time my poor ole L48 shakes is when I have a fouled plug. :D

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