Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Thread Tools Search this Thread

Old 08-10-2010, 04:18 PM
autocane autocane is offline
Learning to use the forums
Join Date: Aug 2010
Posts: 8
Default Intermittent speedometer failure, need help.

1998 Ranger sport 4x4
Manual transmission
Electronic controlled transfer case

My speedometer functions most of the time, but on occasion the needle will just go dead for a mile or so. I cannot find the sensor responsible for the speedometer. Auto parts stores have speed sensors in stock, but I don't know where it goes (apparently nobody else does either). I am at a loss.

Some have told me that the ABS sensor in the center of the rear differential provides information to the speedometer. To test that, I unplugged the ABS sensor. The ABS light came on, but the speedometer still functioned.

Some have said that there is a sensor on the output of the transmission or the transfer case. There is no sensor in either location. I disconnected the wire harness (the only wires leading) to the transfer case, and the speedometer still functioned.

I disconnected the back-up light sensor near the shift lever just out of curiosity. As expected, the back up lights stopped functioning and the speedometer still worked.

I can find nothing else to try in the vicinity of the transmission, differential or transfer case. I have called the a$$4@!3s at my local Ford dealership, and some (more friendly) out of town dealerships, and have not gotten an answer that solves the problem. What am I missing?
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Throttle Position Sensor Failure Jbaugh75 4-Cylinder Tech 5 06-07-2011 04:56 AM
oil pressure failure kreamer Other Engine Tech 1 06-03-2010 11:54 AM
Front Bearing or CV joint failure mj1287 Drivetrain Tech 5 05-05-2010 08:29 AM
Alternator Failure Bill Jesse Electrical Tech 11 03-21-2010 12:14 AM
Water Pump Failure? RangerSteve 3.0 Vulcan Tech 12 02-24-2010 11:01 PM