Windshield wipers on 1990 36 SP

[Dave]

Fred,
Thanks for the quick reply. There is a wiper delay rotary switch on
the dash and then the wiper controls on the turn signal stalk. I have
fiddled with both and get no results in any combination.

The rain is getting worse, it looks like we may be here tonight and
head home in the morning, wife and daughter have already hit the sack,
I am going to take the pup out for a stroll in the monsoon and brew a
cup of coffee and watch the late news.

Thanks again,
Dave