Mark,

There is a switch under the throttle housing on the engine that can cause
this problem.  My 86 had similar symptoms along with when warm would idle a
little too fast.  With the engine off, move the throttle with your hand and
listen for the on/off click.  I was able to save mine by removing it,
soaking it in break free over night and working the button switch a bunch of
times. New ones are available from list vendors.

If it is the idle stabilizer valve, just unplugging it may not work.  Mine
went bad a couple of weeks ago just before I left on a long trip so I
unplgged it.  After about 1500 miles my idle would not drop below 3000 rpm
and I had to plug the hoses.

Randy Herd
86 GL Weekender
68 Kombi
98 Cherokee
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