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

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 02-28-2007, 11:37 PM
Member
Garage is empty, add now
 
Join Date: Aug 2005
Location: Northeast PA
Vehicle: 1995 Ford F150
Posts: 51
erratic speedometer

I just did a boat load of work to my '95 F150 5.8 5speed(conversion) 4x4. I took it for it's first drive after the work, the list of which would exceed this block's word limiit, and the speedo became erratic. The needle jumped from what seemed to be an accurate speed to lower speeds. The needle jumped more as speed increased, becoming most noticeable above 65 M.P.H. The only problem was the needle, and nothing else seemed to be affected. My cruise control no longer works either, but that could be due to some harness wire jumping to eliminate the old auto's wiring and control. Any help much appreciated. I did change the speed sensor in the rear but not the one in the transfer case. Which one actually controls the speedo? I think the rear is just for the ABS.
Reply With Quote
  #2  
Old 03-01-2007, 02:54 AM
Senior Member
1983 Ford Bronco
 
Join Date: Nov 2006
Location: Memphis, TN 38135, USA, Earth
Vehicle: 1983 Ford Bronco
Posts: 5,334
Read this thread, then click my signature link & look in the 8.8" Axle album. Pull your ABS sensor, clean off any metal filings, & inspect the tone ring thru the hole. If you chock BOTH front tires front&back, lift at least 1 rear tire, & put the trans in N, you can spin the d'shaft and inspect the entire tone ring for damage or looseness. If there are a lot of filings on the sensor, you should open the rear cover & find out why.

If all of that checks OK, then it's probably the PSOM dying. They're known to occasionally. Just find a used one. If you can't find one locally, e-mail me. I have a few.
__________________
Walk softly & carry a BIG SIX ! ! !

. . .
Reply With Quote
  #3  
Old 03-01-2007, 10:03 AM
Senior Member
Garage is empty, add now
 
Join Date: Dec 2004
Location: Dover AFB DE / Harrisburg PA
Vehicle: 11 FULLsize ole' Ford rigs
Posts: 4,917
Send a message via AIM to adrianspeeder Send a message via MSN to adrianspeeder Send a message via Yahoo to adrianspeeder
What did you get the transfer case from? There shouldn't be a need on the '92-'96 to have a transfer case speed sensor.

Adrianspeeder
__________________
Reply With Quote
  #4  
Old 03-01-2007, 11:29 AM
Member
Garage is empty, add now
 
Join Date: Aug 2005
Location: Northeast PA
Vehicle: 1995 Ford F150
Posts: 51
The transfer case is the original electronic shift BW 1356. The rear end speed sensor is brand new but it was one I had lying around for a while. I also changed rear oil. The old rear sensor wasn't that bad and there wasn't any excessive shavings on the sensor or in the rear. The speed sensor in the transfer case is also original and looks to be a little involved to change.

Last edited by JMGNPD; 03-01-2007 at 11:38 AM.
Reply With Quote
  #5  
Old 03-01-2007, 11:56 AM
Senior Member
1983 Ford Bronco
 
Join Date: Nov 2006
Location: Memphis, TN 38135, USA, Earth
Vehicle: 1983 Ford Bronco
Posts: 5,334
JMGNPD
Check it all anyway.

adrian
All ESOFs have a speed sensor (#20) embedded in the back cover of the t-case. It's what the 2 odd wires from the shift motor connector go to. Most people don't realize how easy it is to access, so they cut the wires when removing the motor.

__________________
Walk softly & carry a BIG SIX ! ! !

. . .
Reply With Quote
  #6  
Old 03-01-2007, 12:33 PM
Senior Member
Garage is empty, add now
 
Join Date: Dec 2004
Location: Dover AFB DE / Harrisburg PA
Vehicle: 11 FULLsize ole' Ford rigs
Posts: 4,917
Send a message via AIM to adrianspeeder Send a message via MSN to adrianspeeder Send a message via Yahoo to adrianspeeder
Wow, never saw that. Course always had manuals in the fleet.

Adrianspeeder
__________________
Reply With Quote
  #7  
Old 03-01-2007, 03:55 PM
Member
Garage is empty, add now
 
Join Date: Aug 2005
Location: Northeast PA
Vehicle: 1995 Ford F150
Posts: 51
The truck originally was an auto. with push button 4x4. I swapped in the 5 speed. Ford never made a 5 speed with push button 4x4 so I'm guessing that the speed sensor on the transfer case has only to do with the shift on the fly push button. The service manual doesn't show a speed sensor on the manual shift tcase. I still have the push button. I just had to add a switch to the neutral wires on the old auto wiring to shift into four low.
Reply With Quote
Old 03-01-2007, 03:55 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 02:16 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