Go Back   Ford F150 Forum - Community of Ford Truck Fans > Pre-1997 F150 > 1987 - 1996 F150
Sign in using an external account
Register Forgot Password?


Welcome to F150 Forum!
Welcome to F150 Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 02-20-2012, 09:08 PM   #1
Junior Member
 
cy_bo9210's Avatar
 
Join Date: Nov 2011
Posts: 16
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default Windshield wiper relay location

I have a 91' with an Inline six. Does anyone know where the wiper relay is located? It is not inside the engine compartment where the other relays are. I have already replaced the motor and switch, only my high speed works.

Thanks for any help.
cy_bo9210 is offline   Reply With Quote
Old 02-21-2012, 09:08 PM   #2
Junior Member
 
Join Date: Oct 2011
Posts: 5
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I just had the same problem. This post worked for me to the T!

"I just fixed the wiper problem!! It was pretty easy. The only tools you'll need are a quarter inch nut driver and a soldering iron. Disconnect the big red connector from the back of the wiper switch. The interval governor is a little black plastic box just to the left of the fuse box (behind the headlight and wiper switches). There is one bracket on the bottom rear of the module box and a single screw attaches it to the dash. Remove the screw and pull the module forward out of the dash compartment. Disconnect the black cable connector at the module. It looks almost identical to thee red connector at the wiper switch. Take the module assembly to a suitable work bench with plenty of light. Two screws hold the cover on. One of the screws also holds down the short cable assembly coming out of the box. Remove the two screws and carefully lift the PC board assembly out of the plastic box. Inspect the backside of the PC board. At one corner of the board is a large plastic relay and next to it is a heatsink with a special power resistor connected to the bottom of it. On my PC board, solder connections were broken on the heatsink and resistor leg. Carefully inspect all the other connections on the board for cracks. These are cheap, single-sided PC boards and the solder connections can break very easily, because there is no plating through the holes that the components go through. if you have an eye loupe or a magnifying glass, use them to carefully inspect all the connections. If any connections are broken, simply take some regular 60/40 electronic solder wire (the kind with a flux core) and solder any of the faulty solder connections. Of course, I also inspected the top (component) side of the board to make sure there were no burned components. On my board, the components looked fine. When finished, put the board back in the box and re-install. I did this and voilą! The delay works perfectly, and so do low and high speed wipers. I guarantee this is a common problem with these wiper modules. With those cheap solder connections, and the board rattling around in the dashboard for 20 years, this is the kind of thing that usually goes wrong. Hope this helps everyone. It was really pretty simple. "

rusheadcarerra
usjm72 is offline   Reply With Quote
Old 02-21-2012, 09:08 PM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


 

The Mustang Source
All times are GMT -4. The time now is 11:23 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.5.2
Copyright © 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.