instead of buying new plugs, wires, etc. - which are working fine
otherwise, buy a couple of $$ worth of dielectric grease and but it on
the ends of the spark plug wires and the coil to distributor wire

This solved a similar problem for me several years ago with my Syncro.

Also check the Idle Control device in the box like space behind the
right rear taillight assembly.  The device and the plug it fits into
should be mounted into a bracket on the back will with the wire pointing
down.  Lot of people find this device has just been laid back in there
by a PO or a mechanic and can get wet easily in this position.  Putting
it in the bracket properly has solved problems related to wetness for
many people.

Check to make sure all the clamps connections in the air intake are snug
and moisture is not getting in there.  Check other connections like Hall
Sender, O2 sensor connections, but these latter items are less likely to
be it.

Sam

--
Sam Walters
Baltimore, MD

89 Syncro GL, Zetec Inside
85 Westy Weekender
85 Mercedes Benz 300D Turbodiesel - to become veggie oil powered

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