All seemed to be functioning as it should after disconnecting cable and
checking TB for any hang ups.  Van sat in the 60-70deg parking lot at work
and then I drove 125 miles to the beach and never had the issue.  Woke up
this morning to a crisp 40 deg and high idle had returned.  Disconnected
the cable and tried to get the TB to repeat the symptoms and couldn't do
it.  I have the stock tension spring attached from the plenum to the TB.
Accelerater cable has never been changed in the 14 years I've owned the
van so I may swap in my spare, but I'm troubled by the coincidence of the
cable now being bad right after my TB was changed out.  Would a vacuum leak
when cold cause this?

Thanks everybody!

On Thursday, October 5, 2017, Dennis Haynes <d23haynes57@hotmail.com> wrote:

> Unless there is a defect or somehow the housing is distorted it is not
> likely the problem is the throttle body. I would replace the return spring
> with the correct one. It is common for the cable to fail in ways that will
> prevent full return of the throttle. The inner cable can fray causing it to
> hang up and the outer jacket can have separations causing it to expand and
> act like a spring opening the throttle. I would begin by checking the
> adjustment at both ends and leaving some extra slack. If you don’t remember
> when the cable assembly was last changed it is probably time.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [
> Subject: "sticky" new Gowesty throttle body
>
> Hi all,
>
> Have a couple hundred miles on the this unit now.  Initial feedback was
> great until this morning.
>
> http://www.gowesty.com/product-details.php?id=24718
>
> I experienced slow or no return on the TB upon letting off the gas on the
> freeway. Go to shift from 3rd to 4th and the RPMs remained steady in the
> 3-3.5k range through the shift. If I left the van in gear and slowed down
> via braking to 2K RPM or thereabouts, the idle would return to normal upon
> depressing the clutch. Let off the accelerator while cruising at 3k RPM and
> I could tell the van was not decelerating as it should be. Depress the
> clutch pedal and RPMs did not drop to idle levels. TB was not closing.
>
> Thoughts? I'm wondering if the original tension spring isn't up to the
> task and needs to be bent/shortened some to increase return force on the TB.
> Never had this issue before the new TB.
>
> 87 GL w/ Rocky Jennings 2.2L motor.
>
> thanks,
> Andrew
>