Rear wiper arm fell off....

[Charlie207]

Lots of snow yesterday, and on my way home from the mountain I tried to remove a bit of the snow buildup. Clicking the switch to run the rear wiper and I heard a faint crack. I just figured that.... who knows. When I stopped at a gas station to wipe off the snow I saw the entire arm dangling by the fluid hose.

Is there a better version of a new arm to buy over whatever is available on Scamazon or Rock Auto?

 

[OR VietVet]

Before anything else, I would want to know why it came/fell off.

 

[Charlie207]

Before anything else, I would want to know why it came/fell off.

Too heavy snow?

Sh!tty plastic construction?

Burly electric motorb?

 

[OR VietVet]

Too heavy snow?

Sh!tty plastic construction?

Burly electric motorb?

Is the motor transmission still good? Splines still good? The old arm was plastic? I personally clear snow away before turning on wipers and the heat grid at rear should keep it melted enough to wipe ok. At RA, a Dorman rear arm is listed and is metal. When I replaced mine, right after I got the rig, I found a NOS at a local dealer and snapped it on with a new wiper blade. Here in the valley floor, we don't get much snow though.

 

[Charlie207]

Is the motor transmission still good? Splines still good? The old arm was plastic? I personally clear snow away before turning on wipers and the heat grid at rear should keep it melted enough to wipe ok. At RA, a Dorman rear arm is listed and is metal. When I replaced mine, right after I got the rig, I found a NOS at a local dealer and snapped it on with a new wiper blade. Here in the valley floor, we don't get much snow though.

Snow was cleared, and rear-defroster is always used, but the timer on that is something dumb and short, like 2 minutes. On top of that there was a no-kidding blizzard of heavy/wet snow, that clings to the rear window.... I'll take a look at that Dorman unit.

 

[BlaineBug]

There should be a little locking tab that you must slide over for it to stay locked onto the spline shaft that comes out of the wiper motor. Maybe that is loose or damaged in some way and isn't holding the wiper arm on.

 

[Charlie207]

There should be a little locking tab that you must slide over for it to stay locked onto the spline shaft that comes out of the wiper motor. Maybe that is loose or damaged in some way and isn't holding the wiper arm on.

Not the case.

Lots of broken plastics and separation of a major section of the arm from the vehicle. No coming back from this one.

 

[BlaineBug]

Not the case.

Lots of broken plastics and separation of a major section of the arm from the vehicle. No coming back from this one.

Pics?

 

[Charlie207]

Pics?

In a little bit. Stuck in a meeting.

 

[Charlie207]

You can see the arm has the end of it broken off.

 

[OR VietVet]

Plastic arm is asking for problems. It was the original one, right?

 

[89Suburban]

2014 GMC Yukon Rear Wiper Arm & Blade General Motors OEM GMWWS00001

Order your Wiper Arm & Blade - today at 1AAuto.com. Up To 50% Off Prices EveryDay! Get Fast & Free Shipping On Premium Quality Parts. Shop Now & Save!

www.1aauto.com

 

[Sparksalot]

Slow down. It won’t get so scared and jump off.

 

[Charlie207]

Plastic arm is asking for problems. It was the original one, right?

I don't know. It was there when I bought the truck.

 

[BlaineBug]

Easy peesy. Remove the rusty nut, remove the portion that's still attached to the splines, and replace the entire assembly. Found a replacement for under $10;

https://www.ebay.com/itm/284025856214?fits=Year:2014|Make:GMC&epid=18036167344&hash=item422142a0d6:g:3ccAAOSwvzFd6KVa&amdata=enc:AQAHAAABANA1VfftQMT4Bb23OurJoIOuIC4XcPNNUOCnfghyD/7FGgNcfz4Hl5dhBpRJl2gikCrWgwpCpT5gHX+exvP+ir935A2CACqEF1ZqmaZYdhTabcaIdj+4M1t1rY2+y+9nrV2f+PiAj4AxJmNzxIDHx+FY7w6wPSvZQtiRpl5BMjlZmOg4Wvna9LVBnqXozooWvGbiD5oQYXUduYQiJ6Sd+tBIvW/uCANCnsHs+UpqSsOfwpTdffrBB8HNbRtP5LzR6InYDnWray/X/d1VbgzovPw8RUnt84YHI5XRBD2HO6MY6g2pRySyO3mxj3bs3gYy4b500ybLfmtSiE7q3UthKAU=|tkp:Bk9SR6ywiM-8YQ

EDIT: 1A Auto Parts must be a real super duper ripoff at $100 vs $10.

 

[Joseph Garcia]

Not all rear wiper changeouts are easy peasy. A number of folks here, including myself, had a hell of a time getting the wiper arm base off the splines. I had to use a pully puller to get mine off the splines. Before mounting the new wiper blade arm, put some grease on the splines, so that if needed, you can easily remove the wiper the next time (hopefully never).

I purchased a rear wiper arm (perhaps Dorman) from Rock Auto, and 3 years later, it is still operating fine.

 

[OR VietVet]

The Dorman one is all metal but the black finish will give up the ghost eventually, especially on salt roads.

 

[BlaineBug]

Not all rear wiper changeouts are easy peasy. A number of folks here, including myself, had a hell of a time getting the wiper arm base off the splines. I had to use a pully puller to get mine off the splines. Before mounting the new wiper blade arm, put some grease on the splines, so that if needed, you can easily remove the wiper the next time (hopefully never).

I purchased a rear wiper arm (perhaps Dorman) from Rock Auto, and 3 years later, it is still operating fine.

Corrosion can make that a real pain I agree, but if this wiper arm is in fact totally plastic from the factory, I don't think it'll be corroded.

 

[89Suburban]

Easy peesy. Remove the rusty nut, remove the portion that's still attached to the splines, and replace the entire assembly. Found a replacement for under $10;

https://www.ebay.com/itm/284025856214?fits=Year:2014|Make:GMC&epid=18036167344&hash=item422142a0d6:g:3ccAAOSwvzFd6KVa&amdata=enc:AQAHAAABANA1VfftQMT4Bb23OurJoIOuIC4XcPNNUOCnfghyD/7FGgNcfz4Hl5dhBpRJl2gikCrWgwpCpT5gHX+exvP+ir935A2CACqEF1ZqmaZYdhTabcaIdj+4M1t1rY2+y+9nrV2f+PiAj4AxJmNzxIDHx+FY7w6wPSvZQtiRpl5BMjlZmOg4Wvna9LVBnqXozooWvGbiD5oQYXUduYQiJ6Sd+tBIvW/uCANCnsHs+UpqSsOfwpTdffrBB8HNbRtP5LzR6InYDnWray/X/d1VbgzovPw8RUnt84YHI5XRBD2HO6MY6g2pRySyO3mxj3bs3gYy4b500ybLfmtSiE7q3UthKAU=|tkp:Bk9SR6ywiM-8YQ

EDIT: 1A Auto Parts must be a real super duper ripoff at $100 vs $10.

That is very strange and not common with them. Thanks for bringing that to my attention. I order a lot of stuff from them. This is the first time I saw something that off the wall in pricing on that site.

 

[OR VietVet]

Those battery cable end pullers work real well for pulling wiper arms off of wiper transmissions.