Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

trembling

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Old Feb 9, 2012 | 02:53 PM
  #1  
dannyseps's Avatar
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Default trembling

my accord shakes while in idle..... not sure if its a motor mount or somrthing else.

the motor seems to be running ok but im not an expert, any ideas?

95 accord single overhead cam vteck.
this is the first time working on honda, please exuse my ignorance in advance!
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Old Feb 9, 2012 | 04:40 PM
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Default Re: trembling

no one's replying because we need more info...

trembling all the time?

can be motor mount,

can be running on 3 cylinders only (check spark plugs,wires, cap/rotor),

can be .... etc

vtec= F22b1 engine

any trouble codes from the ecu?
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Old Feb 10, 2012 | 06:30 AM
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Default Re: trembling

I'll check the wires..so far . I only feel the trembling when it's in idle I'll check further today.
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Old Feb 10, 2012 | 06:45 AM
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Default Re: trembling

oh so only at idle... and it runs OK other times? may be a vacuum leak, or your IACV is acting up, or a ground wire, or etc...

post a youtube vid if you can, because it's like pulling teeth to get more information out of your situation...

you know how to access the blue plug by the glovebox to get the trouble codes, right?

http://www.youtube.com/watch?v=EDEZ8PBp3X0

http://www.instructables.com/id/How-...gine-Light-Fo/
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Old Feb 10, 2012 | 07:27 AM
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Default Re: trembling

Is it a regular shake, or an irregular shudder? Does it follow a rhythm?
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Old Feb 10, 2012 | 01:45 PM
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Default Re: trembling

Originally Posted by StreetsideStig
Is it a regular shake, or an irregular shudder? Does it follow a rhythm?
Steady vibration.... And it seems to do it once the choke kicks off.
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Old Feb 10, 2012 | 01:48 PM
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Default Re: trembling

Originally Posted by ricebike
oh so only at idle... and it runs OK other times? may be a vacuum leak, or your IACV is acting up, or a ground wire, or etc...

post a youtube vid if you can, because it's like pulling teeth to get more information out of your situation...

you know how to access the blue plug by the glovebox to get the trouble codes, right?

http://www.youtube.com/watch?v=EDEZ8PBp3X0

http://www.instructables.com/id/How-...gine-Light-Fo/

Looks easy enough I'll try it out tomorrow...
Where can I find the info on the codes?
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Old Feb 10, 2012 | 02:23 PM
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Default Re: trembling

Your CEL would be on if there are any codes that can be seen using this method.
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Old Feb 10, 2012 | 02:29 PM
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Default Re: trembling

Originally Posted by ricebike
no one's replying because we need more info...

trembling all the time?

can be motor mount,

can be running on 3 cylinders only (check spark plugs,wires, cap/rotor),

can be .... etc

vtec= F22b1 engine

any trouble codes from the ecu?

i checked wires and pulled them while the engine was running and all the cylinders where working evenly.
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Old Feb 10, 2012 | 02:33 PM
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Default Re: trembling

Ya know, if you were to make a video of your car shaking, and post it on here, that would be quite helpful :D
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Old Feb 10, 2012 | 04:24 PM
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Default Re: trembling

Originally Posted by dannyseps
Looks easy enough I'll try it out tomorrow...
Where can I find the info on the codes?
google search is your friend

here's one result:

http://www.troublecodes.net/honda/hondadtc.shtml

agree that vids are more helpful since we don't have to guess at stuff like this
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Old Feb 13, 2012 | 04:52 PM
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Default Re: trembling

Originally Posted by dglassmyer
Ya know, if you were to make a video of your car shaking, and post it on here, that would be quite helpful :D
the car shaking you wont be able to see on video, you cant even see it with the naked eye, what makes you notice it is becouse you hear the dashboard vibrating... the motor if you look close you can see the vibrating i dont think i will catch on video.

it looks like its trembling from being cold (like if it was a kid)
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Old Feb 13, 2012 | 07:22 PM
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Default Re: trembling

Originally Posted by dannyseps
it looks like its trembling from being cold (like if it was a kid)
lol, reading this made me laugh.
I still shiver when its cold and I'm all grown up!!

Ok Danny there just seem to be too many ideas and not enough information here to get you on the right path.
Lets try and narrow it down a bit to figure this out.

First, do you, or have you recently (since the shaking started) had a CEL, or check engine light on?

Secondly, you said your car doesn't shake until the "choke" kicks off. The component you are referring to is actually called the Fast Idle Thermo Valve.
Its function is similar to a choke in that it will raise engine idle RPM until the engine warms up, therefore helping with cold starts.

Now to the actual question, when your FITV kicks off, what idle speed does your engine drop to?
What RPM is the engine spinning at when the shaking occurs.

The normal idle speed for your car is 650-750 RPM's.
A speed lower than this could cause a rougher than normal idle.

So, to recap, what is your idle speed off "choke", and do you have any CEL's on?
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Old Feb 13, 2012 | 08:12 PM
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Default Re: trembling

Clean out your throttle body would be a great idea. You can buy some cleaner at your local auto-parts store. Clean it out with a nice brush. Another GREAT idea would be to buy a vacuum gauge at this same auto parts store and check the vacuum on your engine.

Also check the Fast Idle Thermo Valve like previous posters have said.
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