Wiper/washer blows fuses

I am working on a 1994 Caprice. I am having a problem with the wiper/washer. Sometimes they work fine, other times the intermittant wipers won't work and when the intermittants won't work if you engage the washer pump the fuse blows. I have reason to believe it may be the wiper timing control unit located in the plastic cover on the wiper motor, but I am having a hard time locating this part as a replacement. If anyone has experienced this problem, or knows where to get the timing control unit I'd be most grateful.

Any parts house should have them. I've used Napa and Anco units. Try to avoid ones where you have to alter the existing car wiring, if I had to do another one, I'd go to GM and get the right one. I had nothing but headaches with Napa timing units and when I replaced it with the Anco unit, the wiring was diferent from the Napa butchery I had to perform.

Bob

Thanks for the reply. I went to a local AC-Delco distributor and found that what I was looking for was actually called a cover, even though it includes the wiper control module. It was $77, but if it solves the problem it's well worth it.