240 windshield wiper motor issues.....

  #1  
Old 09-23-2014, 07:13 PM
Junior Member
Thread Starter
Join Date: Jun 2013
Posts: 19
Default 240 windshield wiper motor issues.....

Trying to troubleshoot the wipers on my 1988 245. I have no fast speed, only very slow. Either position it is just very slow. Could this be indicative of a motor that is just worn out, or wiring?

Scott
 
  #2  
Old 09-27-2014, 09:38 PM
Member
Join Date: Jan 2011
Location: Long Island, NY
Posts: 79
Default

This could be from a number of things. Check the fuse for the wiper. It often gets corroded. Of course, while you are in there spin all of the fuses to wipe off some of the corrosion.

I think that in 1988 they did not have a ground wire to the wiper motor, it grounded through the mounting screw. So, this connection may be getting corrodeded. The best bet would be to add a ground wire. When I bought a replacement wiper motor it had this ground wire connection going to the body of the wiper motor.

The grease inside the wiper motor gearbox might be getting old and hard. It can be opened up and grease and/or oil added. You don't even need to remove the wiper motor to do this.

On the ends of the wiper motor are plain bronze bushings these are lubricated when they are installed but over time the oil dries up. This is harder to access. You need to remove the wiper motor, open the gearbox and remove the screws that hold the motor together then squirt some oil into the bushings. Then put it all back together.

If you are not up to taking the motor apart just buy a new one. I don't think they are that expensive. Tell us how things go and if you encounter problems.
 
  #3  
Old 09-28-2014, 02:03 AM
Former Moderator
Join Date: Oct 2010
Location: 37 North on the left coast
Posts: 9,995
Default

odds are pretty darn good your motor is worn out. yes, check the two power wires to it, one is high, one is low speed, they are right there on the firewall. motor replacement is pretty darn easy, I talked my 18 yr old daughter through doing hers. pull the glovebox out, unclip the drive shaft behind the glovebox, then remove the motor from the engine compartment side.

I believe the brown wire is low speed, the green wire is high speed, and the yellow wire is always on power (thats used to return the wiper to home when its shut off), and the white-black wire is intermittent run.
 
  #4  
Old 09-28-2014, 03:06 PM
Junior Member
Thread Starter
Join Date: Jun 2013
Posts: 19
Default

Thanks you, gentlemen!
 
  #5  
Old 02-05-2019, 10:44 AM
Junior Member
Join Date: Feb 2019
Posts: 5
Default

I have the same issue.. but I replaced the motor with a brand new one.. no change in speed.
 
  #6  
Old 02-05-2019, 01:43 PM
Former Moderator
Join Date: Oct 2010
Location: 37 North on the left coast
Posts: 9,995
Default

then check the voltage at the two wires to the motor when its in low and high speed...

also, with the wiper arms disconnected from the motor crank shaft, do the wipers move smoothly through their travel range? you might need to grease the wiper shafts.
 
  #7  
Old 02-05-2019, 03:11 PM
Junior Member
Join Date: Feb 2019
Posts: 5
Default

Thank you. I will check that tonight
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Blammo
Volvo S60 & V60
0
04-29-2014 01:32 PM
rspi
Volvo 850
0
01-11-2014 06:22 PM
Dr.JellyFinger
Volvo 850
18
12-17-2011 02:39 PM
Luvmy240DL
Volvo 240, 740 & 940
8
06-24-2011 07:38 PM
Ron2498
Volvo 850
2
02-03-2011 12:26 AM


Thread Tools
Search this Thread
Quick Reply: 240 windshield wiper motor issues.....


Contact Us - Archive - 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.