Windshield wiper stud

[2014pinnacle]

Hi guys I have a 2016 cxu 613 pinnacle I had the drivers side wiper arm blow off going down the road. the splines are worn out on the wiper arm stud, how do I go about replacing the stud i can’t figure out how to get to the wiper arm linkages?

[The Heinz]

Those usually come as an entire assembly, Mack (Volvo) calls it the "Wiper Mechanism" in Impact. It's number 3 in the diagram below, part number 23550705. 

[2014pinnacle]

Thanks doesn’t look like a nice thing to try and change

 

[Vladislav]

Depending on the style of the junction you can (or can not?) separate one shaft unit from the assembly to change it in the truck. And keep the 2nd one for the future.

Usually those "shaft units" are hold in the cab wall by a nut attached at the outer side. You drive it off and remove the unit inside the cab. If it's reattachable from the linkage you need access to that area only. If not you would need to take the most of the dash board apart.

[The Heinz]

On 10/25/2024 at 6:10 PM, 2014pinnacle said:

Thanks doesn’t look like a nice thing to try and change

 

I've never had to pull one of these out, so I don't know for sure. I'm fairly certain the wiper mechanism is under the cowl in the engine bay, so at least you wouldn't have to touch the interior dash assembly or anything. 

[Joey Mack]

You should be able to remove the plastic vent strip under the windshield to expose access to the transmission.  It comes out and goes in as a whole assembly. Take note of the rectangular piece that mounts to the motor stud. It faces up or down.. also, leave the wiper arms off until the end. Also,  once you get the transmission in place, before attaching the rectangular block. Run the wiper motor for a cycle, so that it is at 'home position' then connect the block to it.  Be careful of the sharp edges of the holes in the cab.