RE: [DML] High Idle

["Joseph Kuchan" <josephkuchan@xxxxxxxxxxx>]

More likely that the throttle plates are not fully closed at idle.

-Joe Kuchan

>From: JDub <doki_pen@xxxxxxxxx>
>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>To: dmcnews@xxxxxxxxxxxxxxx
>Subject: RE: [DML] High Idle
>Date: Wed, 19 Jan 2005 17:49:33 -0800 (PST)
>
>
>
>So I did a little test today, I put a piece of
>cardboard between the throttle body and the air
>metering unit.  I hooked back up the idle speed motor
>and the car idled perfect! Right on 775 RPMS.  So I
>now know the problem is with air getting by the
>butterflies in the throttle body.  Do you think it's
>possible those spring loaded little thingys could be
>defective?  I guess it could still be air slipping by
>the edges of the butterflies.
>
>Jon
>
>--- John Hervey <john@xxxxxxxxxxxxxxxx> wrote:
>
> >
> >
> > Dub, Is there any end play on the throttle body
> > butterfly shaft. That may be
> > part of it with the gap I'm seeing. They do wear out
> > over time.
> > John Hervey
> >
> >
> >
> > -----Original Message-----
> > From: JDub [mailto:doki_pen@xxxxxxxxx]
> > Sent: Tuesday, January 18, 2005 6:47 PM
> > To: dmcnews@xxxxxxxxxxxxxxx
> > Subject: RE: [DML] High Idle
> >
> >
> >
> >
> > Well the search for the high idle continues.  I
> > suspect a vacuum leak is the cause.  I held the
> > throttle body up to the sun and took some pictures.
> >
> >
>http://pg.photos.yahoo.com/ph/doki_pen/album?.dir=/2649&.src=ph&.tok=phZNFZC
> > BjajZibpm
> >
> > You can see some light through it but I don't know
> > if
> > it's enough to make a difference. What do you guys
> > think?
> >
> > Jon
> >
> >
> > --- John Hervey <john@xxxxxxxxxxxxxxxx> wrote:
> >
> > >
> > >
> > > Jon, I will jump in and ask: Is the idle speed
> > > microswitch working properly.
> > > If it's not adjusted so the top screw is engaging
> > > and turning off the vacuum
> > > solenoid before the bottom screw goes to the rest
> > > position, or not working
> > > at all the vacuum solenoid won't shut off the
> > vacuum
> > > to the ignition
> > > distributor which advances the timing and will
> > cause
> > > the higher idle. Fuel
> > > mixture and vacuum leaks along with Idle speed ECU
> > > and sensor could but not
> > > likely. You could have a bad vacuum line somewhere
> > > else.
> > > John Hervey
> > > www.specialTauto.com
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: JDub [mailto:doki_pen@xxxxxxxxx]
> > > Sent: Monday, January 17, 2005 8:05 PM
> > > To: DML
> > > Subject: [DML] High Idle
> > >
> > >
> > >
> > >
> > > I'm trying to tackle a problem I've had with my
> > > delorean for a long time.  The idle is excessivly
> > > high, about 1500 RPMS.  I was thinking maybe the
> > > timing is off, could this cause it?  If so, do I
> > > adjust it by turning the distributor? Looks
> > awfully
> > > tough to get to.
> > >
> > > Jon
> > >
> > >
> > >
> > >
> > >
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