It's about the wiper motor on my 89 Riviera, the model with the buttons on the instrument panel. I've read through all Buick posts with the word wiper, but my problem seems to be more complex. Here's what it does:
Hi Wiper: works OK but does not return when Wipers Off is pushed
Lo Wiper: starts Pulse, it's exactly like pushing the Pulse button. Does not return when Wipers Off is pushed
Pulse: works OK but does not return when Wipers Off is pushed
Push to Wash: doesn't work unless wipers are already activated, then it works OK
I'm pretty sure it's electrical, not mechanical. I've cleaned all connections, and had the Wiper Cover off the motor, everything looks fine, no rust, nothing looks bent. All the buttons on the instrumentpanel do light up when pushed.
Any good ideas?
