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Old 26 Jan 2007, 04:16 pm
pixielee
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Default revs go up and down when in park

i have a 93 honda prelude auto and when it is in park the revs go up and
down does anyone know why it would do this. it doesnt happen with
anything else.

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Old 26 Jan 2007, 04:46 pm
MishaA
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Default Re: revs go up and down when in park


could be fast idle valve, could be eacv, could be lack of coolant, and
could be your tranny...


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Old 26 Jan 2007, 04:56 pm
Elmo P. Shagnasty
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Default Re: revs go up and down when in park

In article
<81e460134d4d17d5ae29b7109927a53e@localhost.talkab outautos.com>,
"pixielee" <pixielee21egypt@yahoo.co.uk> wrote:

> i have a 93 honda prelude auto and when it is in park the revs go up and
> down does anyone know why it would do this. it doesnt happen with
> anything else.


This happened on my 02 Odyssey; the idle air control valve went bad.

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Old 26 Jan 2007, 08:21 pm
jim beam
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Default Re: revs go up and down when in park

pixielee wrote:
> i have a 93 honda prelude auto and when it is in park the revs go up and
> down does anyone know why it would do this. it doesnt happen with
> anything else.
>

check coolant level inside radiator is full to the top and that all air
is purged from the system.
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  #5 (permalink)  
Old 27 Jan 2007, 07:25 pm
chicago
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Default Re: revs go up and down when in park

I had that happening to me on neutral during cold weather, I was told by a
trustable mechanic it was not a big deal and I never did anything about it,
still running great, although I didnT face extreme cold really lately.


"pixielee" <pixielee21egypt@yahoo.co.uk> wrote in message
news:81e460134d4d17d5ae29b7109927a53e@localhost.ta lkaboutautos.com...
>i have a 93 honda prelude auto and when it is in park the revs go up and
> down does anyone know why it would do this. it doesnt happen with
> anything else.
>



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