My 93 GC 135Kmi seems to have developed a wiper problem over the cold
weekend.  The wipers some times work fine.  However sometimes after
turning them off, the wipers try to park at the base of the windshield
and they get close but then it appears that they seize up or short
out.  The headlights dim and voltage meter drops to 9V until the wiper
circuit breaker trips. Once they get stuck in this situation I found
out the wipers have to be pulled upwards a little bit otherwise they
will continue to trip the circuit breaker.  When pulled up the
windshield slightly, the wipers will eventually start working again
for a while (like all day Sun afternoon) until the circuit breaker
incidence occurs again.  However when the wipers work they seem to be
moving much slower than before and they are parking higher up on the
windshield than they used to.

I am thinking that the motor is going bad or one of the position
switches inside the motor is going bad.  I really don't think it is
the column switch or the wiper control box since the wipers work on
delay, low, and high when they are working.  So my questions are has
anyone had a similar problem and what was the fix?  I presume the
wiper motor is in the cowl area under the black plastic panel and is
pretty accessible.

Walt B.