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  #1 (permalink)  
Old 23 Jul 2011, 08:05 pm
/g
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Default 1998 Civic Idle surge, 1k to 2k

Hi again folks. Same car as the no start after timing belt change.

Once running, I found that the a/c wasn't working. It was working when
my son sold me
the car. So, off it went to the local garage for a/c check and safety
inspection.

When I first brought the car to him, I had the surging. I found that
the valve cover gasket
was broken at one corner and hanging out. I intended to fix it after the
a/c work and inspection.

When my mechanic was working on the a/c, the surge messed him up because
the a/c
compressor kept cutting in and out due to the low idle speed. So, he pushed
the gasket
segment back into place and put RTV around the break to stop the vacuum
leak. It worked
and he fixed the a/c.

Soon after I picked the car up, the surge started again. I bought a new
gasket set, and
installed it. It STILL surges !!!!!!!!!!!!! arrrrgggghhhhh !!!!!!!!!!!

I cleaned the throttle body and plate a bit, didn't help.

I've googled this to death and several things came up. One was that
someone had a
thermostat that was stuck open. Replacing the t'stat fixed his surge. I
haven't done that
yet.

I did do the cooling system air purge thing, but that hasn't helped
either.

The temp guage sits at about 1/3 up from no temp. Manual says it should
be around
1/2.

If the a/c is running, it doesn't surge, only when the a/c is off.

Another thing mentioned was the IAC. Where is that, and how do I check
it?

Any other ideas or experience with this? This is driving me crazy, and
I won't drive
the car until I fix it.

Oh yeah, I attempted to pull the OBD codes. I had a check engine light,
and the first
code was P0505. I couldn't get the 2nd code. Apparently my son had left
the OBD
reader outside in the rain, and it started acting weird. I blew it out and
dried it, but don't
have any codes set right now......

Thanks in advance for any help.... /glenn


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  #2 (permalink)  
Old 24 Jul 2011, 02:09 pm
Jim Yanik
Guest
 
Posts: n/a
Default Re: 1998 Civic Idle surge, 1k to 2k

"/g" <me@you.com> wrote in
news:idKWp.244$GY.136@newsreading01.news.tds.net:

> Hi again folks. Same car as the no start after timing belt
> change.
>
> Once running, I found that the a/c wasn't working. It was working
> when
> my son sold me
> the car. So, off it went to the local garage for a/c check and safety
> inspection.
>
> When I first brought the car to him, I had the surging. I found
> that
> the valve cover gasket
> was broken at one corner and hanging out. I intended to fix it after
> the a/c work and inspection.
>
> When my mechanic was working on the a/c, the surge messed him up
> because
> the a/c
> compressor kept cutting in and out due to the low idle speed. So, he
> pushed the gasket
> segment back into place and put RTV around the break to stop the
> vacuum leak. It worked
> and he fixed the a/c.
>
> Soon after I picked the car up, the surge started again. I bought
> a new
> gasket set, and
> installed it. It STILL surges !!!!!!!!!!!!! arrrrgggghhhhh
> !!!!!!!!!!!
>
> I cleaned the throttle body and plate a bit, didn't help.
>
> I've googled this to death and several things came up. One was
> that
> someone had a
> thermostat that was stuck open. Replacing the t'stat fixed his surge.
> I haven't done that
> yet.
>
> I did do the cooling system air purge thing, but that hasn't
> helped
> either.
>
> The temp guage sits at about 1/3 up from no temp. Manual says it
> should
> be around
> 1/2.
>
> If the a/c is running, it doesn't surge, only when the a/c is off.
>
> Another thing mentioned was the IAC. Where is that, and how do I
> check
> it?
>
> Any other ideas or experience with this? This is driving me
> crazy, and
> I won't drive
> the car until I fix it.
>
> Oh yeah, I attempted to pull the OBD codes. I had a check engine
> light,
> and the first
> code was P0505. I couldn't get the 2nd code. Apparently my son had
> left the OBD
> reader outside in the rain, and it started acting weird. I blew it
> out and dried it, but don't
> have any codes set right now......
>
> Thanks in advance for any help.... /glenn
>
>
>


you should break down and buy a $20 Haynes manual,P/N 42025.
then you would know where the IAC valve is. Page 6-16.
It would also aid in answering most of your other questions.

Of course a Helm's manual is much better,but much more expensive.

any auto store should have the Haynes manual.

--
Jim Yanik
jyanik
at
localnet
dot com
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  #3 (permalink)  
Old 19 Jan 2014, 03:52 pm
tollerballs@gmail.com
Guest
 
Posts: n/a
Default Re: 1998 Civic Idle surge, 1k to 2k

On Saturday, July 23, 2011 9:05:18 PM UTC-4, /g wrote:
> Hi again folks. Same car as the no start after timing belt change.
>
> Once running, I found that the a/c wasn't working. It was working when
> my son sold me
> the car. So, off it went to the local garage for a/c check and safety
> inspection.
>
> When I first brought the car to him, I had the surging. I found that
> the valve cover gasket
> was broken at one corner and hanging out. I intended to fix it after the
> a/c work and inspection.
>
> When my mechanic was working on the a/c, the surge messed him up because
> the a/c
> compressor kept cutting in and out due to the low idle speed. So, he pushed
> the gasket
> segment back into place and put RTV around the break to stop the vacuum
> leak. It worked
> and he fixed the a/c.
>
> Soon after I picked the car up, the surge started again. I bought a new
> gasket set, and
> installed it. It STILL surges !!!!!!!!!!!!! arrrrgggghhhhh !!!!!!!!!!!
>
> I cleaned the throttle body and plate a bit, didn't help.
>
> I've googled this to death and several things came up. One was that
> someone had a
> thermostat that was stuck open. Replacing the t'stat fixed his surge. I
> haven't done that
> yet.
>
> I did do the cooling system air purge thing, but that hasn't helped
> either.
>
> The temp guage sits at about 1/3 up from no temp. Manual says it should
> be around
> 1/2.
>
> If the a/c is running, it doesn't surge, only when the a/c is off.
>
> Another thing mentioned was the IAC. Where is that, and how do I check
> it?
>
> Any other ideas or experience with this? This is driving me crazy, and
> I won't drive
> the car until I fix it.
>
> Oh yeah, I attempted to pull the OBD codes. I had a check engine light,
> and the first
> code was P0505. I couldn't get the 2nd code. Apparently my son had left
> the OBD
> reader outside in the rain, and it started acting weird. I blew it out and
> dried it, but don't
> have any codes set right now......
>
> Thanks in advance for any help.... /glenn


Most likely your idle air control valve!
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