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  #1  
Old 03-03-2015
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Icon13 4r44e trans issues!

Hi Guys, I have a 98 2wd with the automatic 4r44e transmission and 2.5l.

I'm having issues shifting out of first and both my speedometer and odometer don't work.

The ABS light is on and that is it. I don't have a check engine light nor do I have an O/D light flickering. I also have reverse and first but that's it.

I changed the ABS Wheel Speed sensor on the rear differential and repaired the pigtail to it because the wire was clipped but it didn't change anything.

Any suggestions???
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Old 03-04-2015
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If the wire(s) were broken to Speed Sensor then fuses may have blown if they shorted.

On '98 the speed sensor may go thru the ABS module and then to computer and speedo, also cruise control if so equipped.
The computer controls transmission shifting.

There are a few fuses for the ABS depending on model, there should be two in the engine fuse box, and one in the cab fuse box
Check them.
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Old 03-04-2015
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Okay i'll try that out. I'll let you know what I find out
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Old 03-09-2015
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Well after going through the fuse panels all I found was one bad resistor for the abs. I am in the process of finding another one at a junk yard because they are 20 dollars from ford.

I'm going to keep doing some more research, I'll let you know if that resistor fixes anything. Thanks!
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Old 03-12-2015
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I found a good resistor at the junk yard and replaced it. It didnt seem to fix anything.

I did add some more fluid to it and I got it to shift into second manually, and the O/D on/off light started flashing on and off.

I'm not sure if thats any better than where I was at before?

Not quite sure..
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Old 03-19-2015
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For a 98 2wd 2.5L:

Speed sensor (ABS sensor) on top of diff sends signal to GEM.
GEM takes signal and changes frequency based on tire size (REVS/MILE).
New signal is sent to ABS, Instrument Cluster, PCM, and cruise module.

$5 bucks says bad sensor on top of rear differential. My 2000 2.5L went bad at about 80k miles.
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Old 03-22-2015
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Well I checked the RABS Module harness and it was unplugged!

It was a repo and they supposedly "disconnected the odometer" whatever that means. I'm not quite sure how you do that.

I checked the wires from the speed sensor to the RABS harness when it was unplugged and both of them read on the ohms meter. Also I checked the connection from the RABS module to the GEM and that read Ohms as well. All of the wiring seems to be good. I plugged the harness into the module and took her out for a rip.

It shifted into 2nd and 3rd but the O/D light was still flashing. The ABS light is still on and the speedometer still doesn't work. Is there a speed sensor at the end of the speedo cable? I replaced the sensor on the rear differential already so it should be good technically... (hopefully) lol

It's getting closer but just something isnt all the way right.
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Old 03-22-2015
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1994 was the last year of the mechanical speedometer cable, '95 and up is strictly electronic.

So you have no speedo cable, just the VSS.

VSS sensor on the axle sends it's pulses to the ABS module first, then it goes to the GEM(generic electronic module), GEM changes/corrects the pulses for tire size and rear differential ratio, then it goes to speedometer and computer(for shifting and other uses)

It could go to computer and then speedo, just not sure of the GEM wiring
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Old 03-24-2015
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Yeah I checked all the wiring from the sensor to the RABS Module to the GEM to the PCM. The only thing I didnt check is a branch of the wire to the instrument cluster/cruise control.

That is the last wire VSS related. Other than the wire idk what else it could be?

Is there anyway to test the speedometer gage itself?
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