Erratic Idle
05-16-2006 | 11:26 AM
#16
Guest
Posts: n/a
Re: Erratic Idle
jim beam wrote:
>
> ftdn wrote:
> > Took my 98 dx 5spd to the shop today and asked them to check my IAC.
> > Which I will check myself. There is some crappy air intake on the car
> > and the people at the shop said thats what was causing my up and down
> > idle. Can a crappy air intake cause the same issue as a malfunctioning
> > IACV?
> >
> have you checked the coolant level in the radiator? if it's not full to
> the top, it can cause idle problems because one of the sensors is not
> fully immersed.
----------------------------------------
Beyond that, the reservior needs to be full too, since trapped air can't
escape if there's no coolant in the reservoir to replace it.
Honda premix is the foolproof thing to try first. You might have to top
it up to MAX twice.
'Curly'
>
> ftdn wrote:
> > Took my 98 dx 5spd to the shop today and asked them to check my IAC.
> > Which I will check myself. There is some crappy air intake on the car
> > and the people at the shop said thats what was causing my up and down
> > idle. Can a crappy air intake cause the same issue as a malfunctioning
> > IACV?
> >
> have you checked the coolant level in the radiator? if it's not full to
> the top, it can cause idle problems because one of the sensors is not
> fully immersed.
----------------------------------------
Beyond that, the reservior needs to be full too, since trapped air can't
escape if there's no coolant in the reservoir to replace it.
Honda premix is the foolproof thing to try first. You might have to top
it up to MAX twice.
'Curly'
05-16-2006 | 11:49 AM
#17
Guest
Posts: n/a
Re: Erratic Idle
>A quick test:
>Warm the engine up to full hot and keep it running.
>Pull the "crappy intake" so you can see into the throttle body.
>There ought to be a port visible in the throttle body.
>Partially cover the port with your finger. Does the idle settle down?
>Keep covering more of the port until the idle settles down.
>Does it eventually settle down? If so, the IAC isn't moving correctly.
it never settles out
>Warm the engine up to full hot and keep it running.
>Pull the "crappy intake" so you can see into the throttle body.
>There ought to be a port visible in the throttle body.
>Partially cover the port with your finger. Does the idle settle down?
>Keep covering more of the port until the idle settles down.
>Does it eventually settle down? If so, the IAC isn't moving correctly.
it never settles out
05-16-2006 | 11:49 AM
#18
Guest
Posts: n/a
Re: Erratic Idle
>A quick test:
>Warm the engine up to full hot and keep it running.
>Pull the "crappy intake" so you can see into the throttle body.
>There ought to be a port visible in the throttle body.
>Partially cover the port with your finger. Does the idle settle down?
>Keep covering more of the port until the idle settles down.
>Does it eventually settle down? If so, the IAC isn't moving correctly.
it never settles out
>Warm the engine up to full hot and keep it running.
>Pull the "crappy intake" so you can see into the throttle body.
>There ought to be a port visible in the throttle body.
>Partially cover the port with your finger. Does the idle settle down?
>Keep covering more of the port until the idle settles down.
>Does it eventually settle down? If so, the IAC isn't moving correctly.
it never settles out
05-16-2006 | 11:49 AM
#19
Guest
Posts: n/a
Re: Erratic Idle
>A quick test:
>Warm the engine up to full hot and keep it running.
>Pull the "crappy intake" so you can see into the throttle body.
>There ought to be a port visible in the throttle body.
>Partially cover the port with your finger. Does the idle settle down?
>Keep covering more of the port until the idle settles down.
>Does it eventually settle down? If so, the IAC isn't moving correctly.
it never settles out
>Warm the engine up to full hot and keep it running.
>Pull the "crappy intake" so you can see into the throttle body.
>There ought to be a port visible in the throttle body.
>Partially cover the port with your finger. Does the idle settle down?
>Keep covering more of the port until the idle settles down.
>Does it eventually settle down? If so, the IAC isn't moving correctly.
it never settles out
05-18-2006 | 09:48 PM
#20
Guest
Posts: n/a
Re: Erratic Idle
OK! I found out something today. The erratic Idle stops when the AC is
turned on! The AC has to be turned on though, It can't just be the
blower/fan. The AC also makes a whistling sound. Any idea why it
idles normally when the AC is turned on?
turned on! The AC has to be turned on though, It can't just be the
blower/fan. The AC also makes a whistling sound. Any idea why it
idles normally when the AC is turned on?
05-18-2006 | 09:48 PM
#21
Guest
Posts: n/a
Re: Erratic Idle
OK! I found out something today. The erratic Idle stops when the AC is
turned on! The AC has to be turned on though, It can't just be the
blower/fan. The AC also makes a whistling sound. Any idea why it
idles normally when the AC is turned on?
turned on! The AC has to be turned on though, It can't just be the
blower/fan. The AC also makes a whistling sound. Any idea why it
idles normally when the AC is turned on?
05-18-2006 | 09:48 PM
#22
Guest
Posts: n/a
Re: Erratic Idle
OK! I found out something today. The erratic Idle stops when the AC is
turned on! The AC has to be turned on though, It can't just be the
blower/fan. The AC also makes a whistling sound. Any idea why it
idles normally when the AC is turned on?
turned on! The AC has to be turned on though, It can't just be the
blower/fan. The AC also makes a whistling sound. Any idea why it
idles normally when the AC is turned on?
05-21-2006 | 02:12 AM
#23
Guest
Posts: n/a
Re: Erratic Idle
ftdn wrote:
> OK! I found out something today. The erratic Idle stops when the AC is
> turned on! The AC has to be turned on though, It can't just be the
> blower/fan. The AC also makes a whistling sound. Any idea why it
> idles normally when the AC is turned on?
Engaging the A/C kicks up the throttle a bit to compensate for the
additional drag of the compressor.
I'd really be suspecting a vacuum leak at this point.
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> OK! I found out something today. The erratic Idle stops when the AC is
> turned on! The AC has to be turned on though, It can't just be the
> blower/fan. The AC also makes a whistling sound. Any idea why it
> idles normally when the AC is turned on?
Engaging the A/C kicks up the throttle a bit to compensate for the
additional drag of the compressor.
I'd really be suspecting a vacuum leak at this point.
---
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05-21-2006 | 02:12 AM
#24
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Re: Erratic Idle
ftdn wrote:
> OK! I found out something today. The erratic Idle stops when the AC is
> turned on! The AC has to be turned on though, It can't just be the
> blower/fan. The AC also makes a whistling sound. Any idea why it
> idles normally when the AC is turned on?
Engaging the A/C kicks up the throttle a bit to compensate for the
additional drag of the compressor.
I'd really be suspecting a vacuum leak at this point.
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> OK! I found out something today. The erratic Idle stops when the AC is
> turned on! The AC has to be turned on though, It can't just be the
> blower/fan. The AC also makes a whistling sound. Any idea why it
> idles normally when the AC is turned on?
Engaging the A/C kicks up the throttle a bit to compensate for the
additional drag of the compressor.
I'd really be suspecting a vacuum leak at this point.
---
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05-21-2006 | 02:12 AM
#25
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Posts: n/a
Re: Erratic Idle
ftdn wrote:
> OK! I found out something today. The erratic Idle stops when the AC is
> turned on! The AC has to be turned on though, It can't just be the
> blower/fan. The AC also makes a whistling sound. Any idea why it
> idles normally when the AC is turned on?
Engaging the A/C kicks up the throttle a bit to compensate for the
additional drag of the compressor.
I'd really be suspecting a vacuum leak at this point.
---
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Tested on: 5/20/2006 11:12:33 PM
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> OK! I found out something today. The erratic Idle stops when the AC is
> turned on! The AC has to be turned on though, It can't just be the
> blower/fan. The AC also makes a whistling sound. Any idea why it
> idles normally when the AC is turned on?
Engaging the A/C kicks up the throttle a bit to compensate for the
additional drag of the compressor.
I'd really be suspecting a vacuum leak at this point.
---
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Tested on: 5/20/2006 11:12:33 PM
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05-22-2006 | 12:04 PM
#26
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Posts: n/a
Re: Erratic Idle
Anyone know what the best way is to find out where the vacuum leak is?
"Matt Ion" <soundy@moltenimage.com> wrote in message
news
xTbg.179713$WI1.15548@pd7tw2no...
> ftdn wrote:
>> OK! I found out something today. The erratic Idle stops when the AC is
>> turned on! The AC has to be turned on though, It can't just be the
>> blower/fan. The AC also makes a whistling sound. Any idea why it
>> idles normally when the AC is turned on?
>
> Engaging the A/C kicks up the throttle a bit to compensate for the
> additional drag of the compressor.
>
> I'd really be suspecting a vacuum leak at this point.
>
>
> ---
> avast! Antivirus: Outbound message clean.
> Virus Database (VPS): 0620-3, 05/19/2006
> Tested on: 5/20/2006 11:12:33 PM
> avast! - copyright (c) 1988-2006 ALWIL Software.
> http://www.avast.com
>
>
>
"Matt Ion" <soundy@moltenimage.com> wrote in message
news
xTbg.179713$WI1.15548@pd7tw2no...> ftdn wrote:
>> OK! I found out something today. The erratic Idle stops when the AC is
>> turned on! The AC has to be turned on though, It can't just be the
>> blower/fan. The AC also makes a whistling sound. Any idea why it
>> idles normally when the AC is turned on?
>
> Engaging the A/C kicks up the throttle a bit to compensate for the
> additional drag of the compressor.
>
> I'd really be suspecting a vacuum leak at this point.
>
>
> ---
> avast! Antivirus: Outbound message clean.
> Virus Database (VPS): 0620-3, 05/19/2006
> Tested on: 5/20/2006 11:12:33 PM
> avast! - copyright (c) 1988-2006 ALWIL Software.
> http://www.avast.com
>
>
>
05-22-2006 | 12:04 PM
#27
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Posts: n/a
Re: Erratic Idle
Anyone know what the best way is to find out where the vacuum leak is?
"Matt Ion" <soundy@moltenimage.com> wrote in message
newsxTbg.179713$WI1.15548@pd7tw2no...
> ftdn wrote:
>> OK! I found out something today. The erratic Idle stops when the AC is
>> turned on! The AC has to be turned on though, It can't just be the
>> blower/fan. The AC also makes a whistling sound. Any idea why it
>> idles normally when the AC is turned on?
>
> Engaging the A/C kicks up the throttle a bit to compensate for the
> additional drag of the compressor.
>
> I'd really be suspecting a vacuum leak at this point.
>
>
> ---
> avast! Antivirus: Outbound message clean.
> Virus Database (VPS): 0620-3, 05/19/2006
> Tested on: 5/20/2006 11:12:33 PM
> avast! - copyright (c) 1988-2006 ALWIL Software.
> http://www.avast.com
>
>
>
"Matt Ion" <soundy@moltenimage.com> wrote in message
news
xTbg.179713$WI1.15548@pd7tw2no...> ftdn wrote:
>> OK! I found out something today. The erratic Idle stops when the AC is
>> turned on! The AC has to be turned on though, It can't just be the
>> blower/fan. The AC also makes a whistling sound. Any idea why it
>> idles normally when the AC is turned on?
>
> Engaging the A/C kicks up the throttle a bit to compensate for the
> additional drag of the compressor.
>
> I'd really be suspecting a vacuum leak at this point.
>
>
> ---
> avast! Antivirus: Outbound message clean.
> Virus Database (VPS): 0620-3, 05/19/2006
> Tested on: 5/20/2006 11:12:33 PM
> avast! - copyright (c) 1988-2006 ALWIL Software.
> http://www.avast.com
>
>
>
05-22-2006 | 12:04 PM
#28
Guest
Posts: n/a
Re: Erratic Idle
Anyone know what the best way is to find out where the vacuum leak is?
"Matt Ion" <soundy@moltenimage.com> wrote in message
newsxTbg.179713$WI1.15548@pd7tw2no...
> ftdn wrote:
>> OK! I found out something today. The erratic Idle stops when the AC is
>> turned on! The AC has to be turned on though, It can't just be the
>> blower/fan. The AC also makes a whistling sound. Any idea why it
>> idles normally when the AC is turned on?
>
> Engaging the A/C kicks up the throttle a bit to compensate for the
> additional drag of the compressor.
>
> I'd really be suspecting a vacuum leak at this point.
>
>
> ---
> avast! Antivirus: Outbound message clean.
> Virus Database (VPS): 0620-3, 05/19/2006
> Tested on: 5/20/2006 11:12:33 PM
> avast! - copyright (c) 1988-2006 ALWIL Software.
> http://www.avast.com
>
>
>
"Matt Ion" <soundy@moltenimage.com> wrote in message
news
xTbg.179713$WI1.15548@pd7tw2no...> ftdn wrote:
>> OK! I found out something today. The erratic Idle stops when the AC is
>> turned on! The AC has to be turned on though, It can't just be the
>> blower/fan. The AC also makes a whistling sound. Any idea why it
>> idles normally when the AC is turned on?
>
> Engaging the A/C kicks up the throttle a bit to compensate for the
> additional drag of the compressor.
>
> I'd really be suspecting a vacuum leak at this point.
>
>
> ---
> avast! Antivirus: Outbound message clean.
> Virus Database (VPS): 0620-3, 05/19/2006
> Tested on: 5/20/2006 11:12:33 PM
> avast! - copyright (c) 1988-2006 ALWIL Software.
> http://www.avast.com
>
>
>
05-22-2006 | 04:49 PM
#29
Guest
Posts: n/a
Re: Erratic Idle
Hootie wrote:
> Anyone know what the best way is to find out where the vacuum leak is?
A good pair of humanoid auditory sensors.
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> Anyone know what the best way is to find out where the vacuum leak is?
A good pair of humanoid auditory sensors.
---
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05-22-2006 | 04:49 PM
#30
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Re: Erratic Idle
Hootie wrote:
> Anyone know what the best way is to find out where the vacuum leak is?
A good pair of humanoid auditory sensors.
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> Anyone know what the best way is to find out where the vacuum leak is?
A good pair of humanoid auditory sensors.
---
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