As we left the house this morning, a light drizzle decending upon us, I flicked on the windscreen wipers to intermittent and I got some VERY intermittent wiping. The blades would wipe partway across the windscreen, then stutter, and eventually, haltingly, finish their wipe and return to the parked position. At first I thought it was the mechanism, so I quickly turned aorund and went home to swap into my truck. However, on the way home, I put the wipers on low and high, and they worked fine! The stuttering, halting, erratic operation seems to only occur at the intermittent settings- and it happens on ALL intermittent settings.
The vehicle is a 2000 GMC Jimmy with the 4.3, automatic, 4WD, and about 100,000 on the clock. She's a good truck, runs strong, but (typical GM) all the little crap on it is starting to break. However, intermittent wipers are something I kindof like to have, and besides, I'm worried the failure in the intermittents may soon find its way over to all wiper settings. Any advice on what's wrong/ how to fix? Anyone had this problem before? Anyone? Bueller?
