My wipers work but the arm on the passenger side stopped moving.
Easy fix?

 

did you ever take the wipers off sins owning your vehicle? i took mine off to swap to the D1 blades, but forgot to tighten the nuts down and first rain fall the driver side stopped moving correctly and ended up stripping the splined shaft the wiper arm attaches to. ended up putting blue lock tight on both nuts and re tighten the nuts on the wiper blades and they have held well so far these last 6 months.

or you may have a broken piece in the wiper mechanism.

if you take the passenger side wiper arm off, and turn the wipers on, does the wiper stud that wiper arm attaches to move threw its cycle?

 

X1 .......... exactly as BS50MGSXR states or possibly the passenger side wiper wheelbox has flunked. Best for his instructions to check for that.

 

Looks like the arm was just loose. Thanks!

 

If you take the cowl off that covers the motors and whatnot, it is common to find nuts and bolts barely hanging on. At least, I have seen it twice (on different trucks). Solution was to just tighten them--any missing nuts will still be in there.