Notices

Rear wiper slow

 
Old 02-10-2019, 07:54 PM
  #1  
Registered Member
Thread Starter
 
kaehlin's Avatar
 
Join Date: Dec 2013
Posts: 27
Received 6 Likes on 3 Posts
Rear wiper slow

Rear wiper on my RDX is very slow, today it even stopped mid-cycle pointing straight up on the rear glass. With the wipers off there is resistance when I push it - itís not loose. If itís stuck, I can get it re-started by manually nudging it to get it going, but it seems to cycle slowly. Iím guessing I need a new motor, but I have not found any videos online explaining replacement. Has anyone else done this replacement, or know anything about it? Is it just removing the trim on the rear door, then unbolting a motor and reattaching? Any other diagnostic steps suggested before I buy a new motor? Thanks.
kaehlin is offline  
Old 02-11-2019, 07:42 AM
  #2  
Registered Member
 
Join Date: Aug 2018
Age: 49
Posts: 105
Received 43 Likes on 33 Posts
Here is the Acura Manual on replacing the wiper motor. Hope this helps

Last edited by dave08902; 02-11-2019 at 07:46 AM.
dave08902 is offline  
The following 2 users liked this post by dave08902:
kaehlin (02-11-2019), Tech (02-11-2019)
Old 02-11-2019, 03:31 PM
  #3  
Registered Member
 
Tech's Avatar
 
Join Date: May 2017
Location: Right Here
Posts: 418
Received 77 Likes on 53 Posts
Originally Posted by kaehlin View Post
Rear wiper on my RDX is very slow, today it even stopped mid-cycle pointing straight up on the rear glass.
Maybe the motor armature needs cleaning or the pivot is seizing (usually not the case since it runs in a brass sleeve with a stainless steel shaft).

I rebuilt a starter for a friend because it was slow to start and it was not a connection or a battery problem. I know it is a starter, but an electric motor is an electric motor.

Wiper motors are set in a worm drive mechanism (for torque). Check the brushes, clean it, grease it and you are likely good to go. I have rebuilt these on my beaters when I was young.

Before:



After (same part):




If you are handy, these can easily be cleaned and rebuilt.

Last edited by Tech; 02-11-2019 at 03:33 PM.
Tech is offline  
The following users liked this post:
kaehlin (02-12-2019)
Old 02-12-2019, 05:41 AM
  #4  
Registered Member
Thread Starter
 
kaehlin's Avatar
 
Join Date: Dec 2013
Posts: 27
Received 6 Likes on 3 Posts
Perfect, thanks! There are a lot of fasteners in that lower trim panel! I'll get to work and let you know how it turns out, appreciate the detailed help.
kaehlin is offline  
Old 03-02-2019, 10:07 AM
  #5  
Registered Member
Thread Starter
 
kaehlin's Avatar
 
Join Date: Dec 2013
Posts: 27
Received 6 Likes on 3 Posts
Just a quick update - I replaced the motor today, it was very straightforward with the instructions provided. Probably took a little more than an hour, and I was working slowly. The hardest part was finding the nut that holds the wiper blade after I dropped it and it rolled away into the snow, but I was even successful at that. I just went ahead and bought a new motor online, I think it was $70 with shipping. The old motor became hard to move, even turned on and manually assisting it, so perhaps something broke inside the drive mechanism. I appreciate the help provided by this forum!
kaehlin is offline  
Old 03-03-2019, 09:43 AM
  #6  
Registered Member
 
Tech's Avatar
 
Join Date: May 2017
Location: Right Here
Posts: 418
Received 77 Likes on 53 Posts
Originally Posted by kaehlin View Post
The old motor became hard to move, even turned on and manually assisting it, so perhaps something broke inside the drive mechanism.
For your info, that is because it is a worm drive. It will always be hard to move the motor if you are helping it with the wiper arm. If you spin the motor, it turns the wiper system easily.

At 2:30 in this video, it explains how the worm drive system works.
Tech is offline  
The following users liked this post:
SandwichViking (03-03-2019)
Old 03-03-2019, 07:55 PM
  #7  
Registered Member
 
Join Date: Aug 2018
Age: 42
Posts: 42
Received 6 Likes on 4 Posts
This thread should be nominated for the best thread of Acurazine, if there is such a thing.
Base2014RDX is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LowMiles_BlueTL
2G TL Problems & Fixes
3
10-28-2018 06:36 PM
DeAntre
First Generation RL (1996-2004)
0
06-12-2016 11:47 AM
rocsplttr
1G TL Problems & Fixes
1
02-15-2008 04:17 PM


Thread Tools
Search this Thread
Quick Reply: Rear wiper slow


Contact Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.