Community Forums

LEHAFER · 08-13-2021, 10:57 AM

I have a 2008 Workhorse W22 that is giving me fits with windshield wiper problems. The left (driver side) wiper will travel past the windshield and often gets hung up on the windshield trim. This only happens at speeds over 50 mph otherwise they work normally. They also always return to the normal home position when shut off,(unless hung up on trim). I have replaced the transmission linkage and the wiper motor. The spindles that hold the wiper arms have been replaced.
Any thoughts on what could cause this problem?

Skip426 · 08-13-2021, 02:28 PM

Sounds like you've covered most of the items that I thought of ; linkage and pivots ; only thing I can think of is to contact the coach manufacturer to see if somehow the wiper arms have been replaced with longer units that would move the blade closer to the windshield edge curve and placing them too far out on the glass for the mechanism to properly control.

BTW: The only Workhorse items involved in the wiper system are the multifunction switch and wiring, everything else is Winnebago.

inbogie · 08-14-2021, 05:10 AM

sounds to me either the wiper arm has the wrong end or worn out , check to see if you have a knurled end or a d end, if knurled check the teeth and if d make sure it is not rounded off.

LEHAFER · 08-15-2021, 07:19 AM

I do have the knurled ends on the wiper arms and have ruled them out as the problem. only the left wiper travels to far and now they both stop in the center of the windshield. I am looking at the wiper control module and the multi-switch as the problem.
Thanks for your input, I appreciate all responses.

Skip426 · 08-15-2021, 08:12 AM

If only one wiper travels to far then the issue isn't electrical .

Skip426 · 08-15-2021, 08:22 AM

A PO had replaced one wiper arm on my coach , with one two inches longer or shorter ( I'm not sure which) ; if someone has replaced both wiper arms on your coach with longer arms ( to clean more of the windshield in the rain ) then the arm length could put the blade out too far on the glass and it could hang up on the windshield curve.

BTW : I'm assuming your coach has only one wiper motor and linkage , like mine.