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Car Shakes --- Shakes Violently As Speed Increases
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ihavezippers
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Nov 28, 2011, 5:52 PM
Post #1 of 15
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Car Shakes --- Shakes Violently As Speed Increases
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Car in question: Honda Civic 2004.
Background/History: A month ago, our timing belt broke/went bad...my wife drove it approximately 60 miles after it began making a terrible noise, so she could have done some damage at this time. I also had to use a dealer I do not trust much as a matter of convenience, so this issue could have arose there.
Issue: Car starts to shake/vibrate stronger as the speed increases...it is slightly detectable at speeds as low as 20-30mph, but really becomes obvious above 50mph.
The car has never been quite the same as it was before the timing belt issue a month ago, but the shaking seems to really only come to life during Thanksgiving travels this year when we drove 10 hour drives over the course of several days.
Please help---I can't fix this myself, but I want to be educated about the problem before I take it to a mechanic---and I will defintely take it to a more reputable mechanic this time around. Thanks
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Hammer Time
Ultimate Carjunky
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Nov 28, 2011, 6:07 PM
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Re: Car Shakes --- Shakes Violently As Speed Increases
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It's going to require some testing to determine what the problem may be. You will need to do a cylinder leakdown test and compression test and see what they reveal.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Sidom
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Nov 28, 2011, 6:23 PM
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Re: Car Shakes --- Shakes Violently As Speed Increases
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What kind of shape are your tires in?.....
Take a good look at them and make sure there are no bubbles or shifted belts in the thread.
How does the engine sound at idle & when you rev it up?
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ihavezippers
Novice
Nov 28, 2011, 6:26 PM
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Re: Car Shakes --- Shakes Violently As Speed Increases
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Two of the tires are 6 mos old, the other two tires are ancient...not sure how old they are. Its funny you mention the engine, because the sound of it in idle and otherwise changed after the timing belt was replaced. I'm not sure I can describe the change, but defintely different...I wouldn't say it is weaker sounding or anything---
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Sidom
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Nov 29, 2011, 9:54 AM
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Re: Car Shakes --- Shakes Violently As Speed Increases
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If all this started after the timing belt replacement......Pop off the cover & double check your marks.........
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Hammer Time
Ultimate Carjunky
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Nov 29, 2011, 10:10 AM
Post #6 of 15
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Re: Car Shakes --- Shakes Violently As Speed Increases
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Or we could just check the compression as I suggested in the first place and save all that work.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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ihavezippers
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Nov 30, 2011, 4:51 PM
Post #7 of 15
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Re: Car Shakes --- Shakes Violently As Speed Increases
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Thanks everyone for your contributions. I know more than I did before. I will let you all know what the mechanic tells me... 
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Discretesignals
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Nov 30, 2011, 4:57 PM
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Re: Car Shakes --- Shakes Violently As Speed Increases
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Check engine light on? Timing belt off on that would turn the check engine light on due to cam and crank phase differences (VVT).
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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ihavezippers
Novice
Nov 30, 2011, 5:05 PM
Post #9 of 15
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Re: Car Shakes --- Shakes Violently As Speed Increases
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No check engine light's not one, for once...
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Discretesignals
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Nov 30, 2011, 5:16 PM
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Re: Car Shakes --- Shakes Violently As Speed Increases
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I'm starting to think what Sidom is thinking in that you have a tire problem causing your vibration since it seems to be speed related.
If the engine was misfiring, the engine had loss of power, or you felt the vibration when you reved the engine in park, then I would would lean more toward an engine problem.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Nov 30, 2011, 5:17 PM)
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ihavezippers
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Nov 30, 2011, 5:34 PM
Post #11 of 15
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Re: Car Shakes --- Shakes Violently As Speed Increases
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I'll try revving the engine to see if I get vibration
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Hammer Time
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Nov 30, 2011, 5:47 PM
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Re: Car Shakes --- Shakes Violently As Speed Increases
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Or we could do a compression test to rule out the timing belt................
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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ihavezippers
Novice
Nov 30, 2011, 6:28 PM
Post #13 of 15
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Re: Car Shakes --- Shakes Violently As Speed Increases
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Compression test is what I'm going to tell the mechanic first...then I'm going to say loudly to myself so he/she can hear me ... "or it could be the tires I guess...hmmm..."
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Hammer Time
Ultimate Carjunky
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Nov 30, 2011, 6:33 PM
Post #14 of 15
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Re: Car Shakes --- Shakes Violently As Speed Increases
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We don't have the benefit of driving it. If a tech drives it he should be able to tell the difference easily.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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