I'm sure there is going to be a simple answer, but here I go anyway... My '88 5ksq windshield washer seems to have no pressure. Washer fluid barely dribbles out of the nozzles. The reservoir is full. Unfortunately, it is not like my '74 Superbeetle which gets washer pressure from the spare tire. I've checked the Q-list search engine, but to no avail. What's going on? - Andrejs