How to repair, diagnose and rebuild a rear wiper motor on a 2011-2017 Jeep Grand Cherokee and other makes and models Skip to the rebuild: • How to: Rear Wiper mot...
Thank you so much. You just saved me $300 or $400. Perfect troubleshooting, I was able to fix the wiper, as it was a rusty shaft. Keep up your videos. Dave
This video is right on the mark. The shaft gets rusty, especially if you never use the wiper. I have a few tricks that he didn't share, that helped me in my repair. First, once you get the shaft out, if you don't have a wire wheel grinder, you can put the shaft into the chuck of your drill and spin the shaft against some sandpaper, with a little oil. Just be careful not to set the chuck against the threads. That will clean it nicely and keep it round. Second, when you put the shaft back in, and are aligning the gears, note that the two gears (one on the shaft and the little half moon shaped gear), that mesh together are both marked with some little dots. Those define the range that the gears travel back and forth. You can eyeball the midpoint between the two, and set the gears permanently. The dots touch when the gear combo reaches full travel at each end of the back-and-forth stroke and the wiper reverses travel. This is the singular position that makes everything work right. All of the pieces that go over the gears to link them to the motor and lock them together only go on one way, so you can't get it wrong if you get those dots lined up. Finally, change the o-ring behind the little plastic ring in the housing that the shaft goes through. This is a standard size that you can get at the hardware store for a buck or less. That might help keep the water out.
Dear Sir, can't thank you enough for this video. It gave me the confidence to replace the rear wiper motor on my jeep. Your instructions were clear and step-by-step and did ommit to anything. Well done, and thanks again.
It's May 2019 and your video is still helping us, i was terrified to fix my rear wiper motor, but i remembered your words" don't be scared, you got to do what you have to do" I took it step by step and every time i go back to your video to see how you did it, I have the motor out now, thanks to you I know my motor is working just need to clean the shaft put a lot of WD40 and tomorrow I will grease it and close it , crossing my fingers, i will find out tomorrow if i success :-), I just hoped you walked us through putting it together back. wish me luck
Great post man...thanks for sharing. Your bright lines cross bar video was helpful too. I ended up not having to pull the motor. I removed the wiper arm/rubber boot and took a small brass file brush to the shaft which was heavily corroded. Sprayed some Jig-A-Loo multiple times and allowed it to penetrate the shaft seal. Then I attached a small pair of vice grips to the shaft and turned on the motor...applying a light amount of pressure on the vice grips I was able to get the shaft turning...keeping the pressure on until the shaft spun freely. Works like new now!! Thanks again!
2013 Jeep Grand Cherokee here. I followed this to the letter and it only took me less than an hour to replace the motor from its housing and put in the new one! (I have the old one if anyone wants it ;)) The only thing I'd suggest about this video is that I'd let viewers know that WD40 is your big time friend here. Use it every step of the way, from loosening every rusted screw to when you reinstall the new motor. I made sure to lubricate everything as I went along and it helped, as Jeeps rust FAST in some spots and on a lot of parts. Thanks again from a thankful viewer!!!
One more happy viewer here. When I took it apart, things were misaligned in the gearbox, so it was jammed up. I still cleaned the shaft since it wasn't exactly turning smoothly, and reassembled and all is well. Thanks.
This video is fantastic. I had the same issue and was about to spend $120 on a new motor. I followed this video, improvised with tools and was able to get it back to working order again. Awesome work!
Thank you so much very great ,helps me to understand the removal and installation,I would like to add that during installation the gear you must have both gears in the bottom shaft and the small one on top of the plastic gear must both gears aligned properly with the arrows.
Thanks for this video. Very helpful, just did the repair today on 2012 Jeep G. Ch.. I painted wiper shaft (the part above O-ring) with cold galvanizing paint after rust removal, I hope it will not rust again. Not all Made in Japan parts/assemblies are made perfect. This assembly should have double O-ring around main wiper shaft or other more robust seal, and shaft housing should be filled complete with grease, also the wiper shaft that comes above the O-ring should have better corrosion protection or made out of stainless steel. The mode of failure for this assembly is the rust from main shaft exposed to elements that is flowing down inside of main shaft housing.
My biggest concern was safely removing the motor from the window. The instructions were exactly what I needed for my 2012 Grand Cherokee. Motor is now on my bench ready for repair. Thanks very much. (I strongly recommend using a gear puller to remove the wiper arm. 3" (75mm) worked well for me.)
This helped immensely! Sadly despite cleaning the rust i discovered the plastic gear had worn through, completely polished smooth. U.U another fine product by Denso... replacement is otw soon for $50! You saved me hundreds from the repair shops
Very informative. Hardest part was the gland nut and washer. Lots of blaster, deepwell 7/8" socket for the nut and chisel for the washer. I replaced.the motor and added silicone brake grease during installation. Thanks!
Great tutorial. I can't thank you enough. Cost me a motor and some time, but so much cheaper than the $450 the dealer wanted to fleece me for the job. Again, great tutorial, descriptive, and easy to follow. Thanks A LOT!!!! Now ..... I am still afraid to take the old motor apart and try and fix that :)
@92bear 450!!!! 🤣🤣🤣🤣 LMFAO you one of them. You lucky we never crossed paths. I'm the type that can sell tacos to the taco truck. Back in my Big-O tire days, I'd pistol whip you with my mouth piece $450 - $500 just for a simple brake job and that's just for labor . A simple $3.00 car part (we'd get a phat discount) would end up costing you $100 add that shit up and you'd be the reason why Christmas time came with a phat bonus. Moral of the story is simple, you sound like a little bitch 😭 the dealer blah blah blah. A bitch is only good for one thing make my pockets fatter. Don't be the bitch don't be scurd 😱 if you fuck up no sweat. You can easily get it at Pick N Pull and just sneak it out.
Awesome video. I too was having my wiper get stuck at the 12 o clock position. I took off the nut and the shaft was covered in rust and debris. I cleaned it up and sprayed it with some fluid film and that was the fix to my problem. If it arises again I will take out the motor and follow the instructions you provided. Thank you
Excellent video! I had the same problem, so I removed the motor like you did and tried to pop out the shaft. It wouldn’t come loose after blasting it pretty hard several times with a hammer. I reinstalled it and it worked like a champ anyway! Better to be lucky than good sometimes 👍🏼
Wow thanks, it was the same as yours very corroded. It was very tough getting it off. I got the motor working on the bench, but I have no power at the plug (ya the fuse is fine). I’m gussing the switch is the issue, hopefully not a broken wire. Thanks for the help. You got to love utube help videos, saved me a lot of money. Now I need a vid on a switch repair
This was my issue too. Thank you for posting. I might add that it's a good idea to clean out the inside of the housing where the shaft spins inside as it too gets rusty just as the shaft itself does and lubricate. Also a good idea to replace that O ring.
Thanks for the video! Had the same problem and decided to just get a new motor. But at least I was able to swap it out myself and still save a ton of $$$
Thank you very much for the video!! Some remarks: if the trunk door is open, the motor is powered, but if just the glass window is opened, there is no tension on the connector (test from the min. 2). Regarding the washer on top of the plastic handle and the handle itself, I could remove them only using a sharp screwdriver. Pay attention that under the handle there is a rubber seal that is fixed on the window. Removal of these two parts were tricky not to break the window or damage the rubber seal.
Totally awesome TY so much! Had exactly the same issue. Could see it wanted to turn and couldn’t. Just removed the outside parts, cleaned away the corrosion, added plenty of WD40 and it is good as new. 10 minute fix that I wouldn’t have had the confidence to do otherwise. Would have cost me a wiper motor plus labour at the garage for sure!
I'm very happy to see such a positive comment. I'm glad I was able to help you save some money. If you haven't yet, please subscribe to my channel . It would be greatly appreciated. Thanks for all the kind words. Have a great day.
Thanks for your information. There is more to the story however. My 2013 grand cherokee had a bad motor which I replaced with one from NAPA Auto Parts. But it would not run so after contacting a mechanic I know he told me that the power to the fuse under the hood did not receive power until the jeep is started and the wiper is turned on. Even then there was no power to the wiper motor so I took the jeep to my regular service tech and had him to clear all errors on all the computers in the vehicle. The wiper motor started working immediately after the errors were reset. Hope this information helps someone.
Thanks for this video! Just picked up a 2011 and mine was rusted worse than yours. Instructions were amazing! I opted to just replace completely but I’ll keep the old part just in case. I know it’s been a couple years but any ideas on how to fix the flipper window? Mine is locked and I can’t get it open
Any chance you can show how to properly re-assemble the motor/gears. I thought what I did was correct but it’s still not working. A step by step video would be excellent. And I think you’re the guy to do it! Please!
Thanks for the kind words. I don't currently have a spare motor to take apart. Just take it apart and try again. You'll get it :) Always test it on the bench before you install it in the vehicle
@@wk2outdoors321 Same thing happened to me today. What can trip you up is the alignment of the wiper shaft as there are v pins you can see right above the gear on the shaft that lock it into the housing. After putting the shaft back in the housing, rotate 100% counterclockwise and position the armature with the teeth so that it's only connecting with the first couple of teeth on the left. As the white plastic gear pulls the armature down, it'll pull the gear on the wiper shaft clockwise. Very helpful video otherwise, saved me 400 bucks that the shop wanted or at least $100 for me to do it myself. Thanks!
Sorry if this is a dumb question, does the shaft have a slight bend to it? It looks like my shaft is slightly bent and I assume that's my issue but wasn't sure if it was supposed to be like that for some reason. Thanks!
Dude you all miss the most important part, show us how did you pull out the shaft and what was in there that we need to put back exactly like it was, how did you put the shaft back and what needed to put back in order
Great video. Gave me the confidence to go out and go at it. Unfortunately, I seem to have another issue. I have no power to the motor. Jeep running and rear wiper on but still no power. Fuse was good. Any idea where to look next? Thanks
Aug '20, dealer told me some time ago wiper motor bad. Bought motor from salvage, plugged in & still not working. Tested voltage from engine to 1st clip at hardtop - getting nearly 5 volts. Checked same on neighbors jeep - same voltage, check. Watched your video on supplying direct electricity to motor and have question. Both old & new motors I connect direct electricity to clip on wiper mount. Neither motor worked. I didn't connect directly to motor as you did so shaft may be seized on both I guess. Did I observe correctly that when you validated motor worked that you used only positive off battery and didn't involve black or negative?
@@wk2outdoors321, mine is an '09 Wrangler 4dr "jk" 1st the good news I separated the motor from the wiper blade mechanism that is to rotate back & forth and just the motor works! Confirming the mechanism is seized. Next hurdle, on my model the black plastic spout that shoots window cleaner is @ 90 degree turn and I can't get the wiper mechanism out to disassemble as you did. Any hints on removing the washer dispenser from motor body so I can pull this from metal frame?
@@briansmith1802 sorry no tips on that. I've never worked with any other jeeps besides the Jeep Grand Cherokee. I'm not a mechanic by trade I just tackle the odd DIY projects. Good luck!
Hey thank you so much for this video mind just went the other day and I need to figure out what’s wrong with it I looked up my fuse it looks fine so I’m assuming I might have to do what you did essentially the only issue was that it was very dirty inside correct?
If you can rebuild motors as small as that, grease and lubricate everything, clean off the shaft, and it might work again once you put it back together, and the best thing to do is just clip on the electricity, put the fuse back in and then see if it turns on, if it doesn't then your motor is probably screwed. These motors go between $90 and $130 brand new. If you need to buy a new one, so be it, I did and it worked perfectly! Take your time and you'll see the results.
Quick permanent fix...remove rear wiper arm and throw away. Under left front of Jeep disconnect the washer bottle pump for the back glass (there is one pump for the rear window and one for the windshield). Apply "Rain X" so water beads on back glass...no more hassle. It's a great idea to use Rain X on all glass of every vehicle...windshield, mirrors, side windows, back glass. Just have to reapply as needed. It lasts a long time. I used it on my over the road semi for 30 years. IMPORTANT:...make sure glass is CLEAN, squirt Rain X onto a DAMP paper towel,and apply like you would wax, let it dry to a HAZE, then buff the haze off with CLEAN DRY paper towel. And...do not apply it to or let it touch the wiper blade rubber when applying...it will "glue" the blades to the glass.
