Among other causes, both problems *may* be caused by sticky or mis-adjusted
throttle switches. There's a switch that signals the ECU that the van is
idling, it needs to change state immediately when the throttle is opened,
and when the throttle closes.

There are, of course, the usual suspects of bad ground connections or
leaky/collapsed vacuum lines.

Tim

At 02:01 PM 5/3/2005 -0400, Matthew Turner wrote:
>Hi, this is my first post to the list...
>
>I have an 87 Vanagon Wolfsburg named "Vera" with 4-sp manual that is
>doing something strange. Well it does a lot of strange things, but
>we'll talk about those later.
>
>Zeitgeist's post about the throttle hesitation made me think of this.
>
>When I slow the van down, and come to a stop at an intersection, the
>engine revs up to about 2000 rpm and sits there. I've not been able to
>find any rhyme or reason to it so far. It will do this if it's in gear
>and the clutch depressed, or if it's just sitting there in neutral.
>The second that the clutch is let out the rpms drop back to idle and
>the van starts moving.
>
>If I'm going to be sitting at a light for any length of time, I'll
>bring the rpm back down by doing one of two things. One, is to quickly
>stomp on the gas pedal and immediately release it. The engine revs up
>to 3k and then returns to a normal idle speed (1k or so). This trick
>works 60 percent of the time. The other way I slow the rpm back to
>idle speed is to get into first gear and ease the clutch out a bit
>with a firm foot on the brake. This is very effective, but I'm sure
>it's destroying my clutch.
>
>Thanks for any help y'all can offer.
>
>Matt Turner
>Bay City, Michigan
>1987 Vanagon Wolfsburg "Vera"