Serious Explorations Ford Explorer and Ranger Message Board
#1 Resource for Ford Explorer and Ranger Owners - By Enthusiasts, for Enthusiasts.


Ford Explorer Generation Guide

EF Swag Store 2015 Ford Explorer Forums Elite Membership Chat Room My Posts Reviews Explorer Photo Gallery
Go Back   Ford Explorer and Ranger Forums "Serious Explorations" > Ford Explorer Ranger Repair - Troubleshooting - Modifications & Detailing Forums > Explorer & Ranger Transmissions, Transfer Cases, & Differentials

Notices

Explorer & Ranger Transmissions, Transfer Cases, & Differentials Transmissions, Transfer Cases. A4LD, 4R70W, 4R44E, 4R55E, 5R44E, 5R55E, M5OD, BW 1354, Control Trac, GEM, AWD. Ford 8.8", Dana 35

Code 648

Reply
 
Thread Tools
Old 06-30-2007, 09:45 PM   #1
bren7176
Downsville Ny
95 EX Sport/98 Ranger
 
Join Date: Feb 2006
Posts: 7

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Code 648

I have a 1995 Explorer the OD light is flashing and I retrieve code 648 incorrect gear ratio-fourth gear. Has anyone had this problem before and what did you do fix this ..Any and all help would be welcome

thanks

Brendan
bren7176 is offline   Reply With Quote
( Join the Elite Explorers )

For only $20 per year you can become an Elite Explorer member. Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose and fix problems yourself, and learn which modifications really work without having to experiment on your own. Elite Explorer members can change the forum "styles" to eliminate most ads, including blue underlined links, and no ads on photos. Other benefits include the ability to store 1000 Private Messages, upload photo attachments directly to your posts and to our Photo Gallery and more. Join the Elite Explorers today.


Old 07-02-2007, 05:39 PM   #2
BrooklynBay
Brooklyn, NY
 
BrooklynBay's Avatar
88 89 93 95 96 Aerostars
 
Join Date: Nov 2005
Posts: 47,903

Vehicle Specs

Mentioned: 3 Post(s)
Tagged: 1 Thread(s)
Quoted: 208 Post(s)
Try to adjust the band first. If you can't adjust it, then it might be broken.
BrooklynBay is offline   Reply With Quote
Old 07-02-2007, 10:38 PM   #3
MrShorty
Spanish Fork, UT
92 XLT and '87 Bronco II
 
Join Date: Dec 2001
Posts: 5,004

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
I'm not real familiar with the 4R55E, but here's what I can say.

Your 4R55E has speed sensors on the input and output shafts of the transmission. The computer "knows" what the gear ratio of each gear should be, so it know what the relative readings of those two sensors should be. It sets that code when it gets the "wrong" reading from one of those two sensors.

1st question I would ask: Is it actually shifting into 4th gear or not? If it is going into 4th gear as it should, then the problem is likely in the sensor circuits. If the computer is commanding it to shift into 4th gear, but the transmission isn't responding, then there's some condition (such as a maladjusted or broken band as suggested by BrooklynBay) in the transmission that is preventing it from responding to the computer's commands.




__________________
Mr. Shorty
92 XLT 4x4
87 Bronco II XLT 4x4
'98 Chev K1500 Suburban SLT 4x4
MrShorty is offline   Reply With Quote
Old 07-03-2007, 04:56 PM   #4
bren7176
Downsville Ny
95 EX Sport/98 Ranger
 
Join Date: Feb 2006
Posts: 7

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Fixed I hope

Well I adjusted the OD band today and took off all the sensor connectors and cleaned them and put back on took the EX for test drive. AS of right now no more flashing OD light one of the 2 thing may have fixed hopefully . Thanks for the feedback and suggestions . Seems to be shifting just fine..

thanks

Brendan
bren7176 is offline   Reply With Quote
Reply



Suggest this thread to friends:



Join the "Elite Explorers" Today!



Search Explorer Forum


Top of Page

Thread Tools

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

Forum Jump


All times are GMT -5. The time now is 08:24 AM.



US Flag
We Support Our Troops!

Explore the site!


Copyright 2014 - 1996 Rick Horwitz Photography



Ford Motor Company is not involved in the management of this site in any way.



All tips on this site are for use at your own risk and discretion.

Modifying the suspension on any vehicle will cause changes to its handling characteristics.



Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.