Go Back   F150online Forums > Body > Electrical Systems
Sign in using an external account
Register Forgot Password?
Register Photos Vin Decoder FAQ Members Search Today's Posts Mark Forums Read Vendor DirectoryGarage

Electrical Systems SPONSORED BY:

Welcome to F150Online Forums!
Welcome to F150Online.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community 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 fast, simple and absolutely free so please, join the F150Online Forums community today!





Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 02-05-2006, 12:14 PM
Junior Member
Garage is empty, add now
 
Join Date: Aug 2002
Location: Wausau, WI
Vehicle: 1999 Ford Expedition
Posts: 4
Rear wiper problem ... 1999 Expedition

I recently purchased a used 1999 Ford Expedition with about 94K miles on it ... overall, it's in pretty good shape for the miles & price ($7K). My first Ford truck!

While it does need some undercarriage work (ball joints, stab bars and rear axle grease seal replaced), one thing that I discovered was that the rear wiper doesn't work. The front wipers work fine, as does rest of the functions on the console switch stem.

Is this a common problem? I seem to recall that Ford had some trouble with the wipers on the F150 platforms.

Any suggestions on how to fix this or where to isolate the problem?

Thanks!
Reply With Quote
  #2  
Old 02-07-2006, 07:58 AM
Senior Member
Garage is empty, add now
 
Join Date: Jan 2003
Posts: 150
Seems to be a common problem with expeditions,,, At 153,000 miles my 97 is ready for its 4th rear wiper motor. The first two were Ford under warranty. The third was a NAPA , replaced by me.
Something you might try, and its what I do now,, give the wiper arm a bump upwards with your hand.. I can do this with mine and it will work for the day..
I think I am going to take this one apart and see if there is a bad spot in the motor that I can clean.

Good Luck
Reply With Quote
  #3  
Old 02-07-2006, 01:11 PM
Senior Member
Garage is empty, add now
 
Join Date: Jan 2000
Location: Along Lake Erie
Vehicle: 2000 Ford F-150
Posts: 3,204
Send a message via AIM to GIJoeCam Send a message via Yahoo to GIJoeCam
Motors are cheap, and if you get one from Advance Auto, they have a lifetime warranty.

As for things to check, you'll need ot remove the trim panel to access the motor. If you unplug it, with the switch on, if you connect a DMM between the bk/lb and w/og terminals on the plug, and set the switch to high, you should see voltage in one direction than the other (as though the system is cycling). If you don't, check both of those two pins individually against a known good chassis ground, and see if you're getting power. If you're getting power to one and not the other, you likely have a bad or sticking relay in the battery junction box under the hood.

Ordinarily both relays are grounded and the motor doesn't move. When it comes out of park, it bumps the wiper-up relay. Then, it sends power from the wiper up relay, through the motor, and back to ground through the wiper down relay for a second (or however long it takes for the wiper to move). Then the down relay is energized and the power reverses the motor and grounds through the up relay. If one of those relays sticks in either position, the circuit is open and nothing moves.

Now, if you check everything, and you've got power, replace the motor. Not a big job at all.

Check it out and let us know what you find.
Reply With Quote
  #4  
Old 02-07-2006, 08:31 PM
Senior Member
Garage is empty, add now
 
Join Date: Feb 2001
Location: Guyton, GA USA
Vehicle: 2012 Ford F150
Posts: 748
The motors are usually OK. It's the nylon gears that get eat up. R&R takes about 1/2 houe. New motors are about $40.00 at the parts store.
Reply With Quote
Old 02-07-2006, 08:31 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 On
Refbacks are Off


All times are GMT -4. The time now is 10:56 PM.


 
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company
Contact Us Advertising Privacy Statement Terms of Service Jobs Forum Text Archives
Emails & Contact Details