98 explorer 4.0 auto, speedometer quit working

Question edited for clarity and add maker. changed funky
'(letter)- space-comma-letter 'CLUSTER ,STILL NO SPEEDO'.
Question moved to Model Category.
Please don't type in all CAPS, it is considered SHOUTING and is harder to read.

Your problem is the VSS (Vehicle Speed Sensor). No idea why you would think it was the cluster or have anything to do with the ABS! Just take it to a professional.

The most common reasons a Ford Explorer Sport Trac speedometer isn't working are the vehicle speed sensor (VSS), a faulty speedometer, or an electrical issue. Search our network of RepairPal Certified shops near you to speak with a technician about your issue. The rear wiper may stop working.

Ford Explorer Sport Trac Speedometer Is Not Working

Videos as well

https://www.google.com/search?q=2001+Ford+SPORT+TRAC.+The+SPEEOMETER+NOT+WORKING

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What year is the truck ? On vehicles from 1996 on ,probably doesn't have a speedo cable , it's electronic . Has a VSS - vehicle speed sensor , this VSS inputs speed info to the engine computer then to the instrument cluster over serial data network .
Your best bet , take it to a qualified repair shop .

did you connect any OBD2 scan tool and look.
the PCM will tell you if the VSS is dead. flat out tell you.
why no scan the PCM and not work blind./??
the tool is cheap to buy, rent or loan. (or any mech will just do it for free as good will. (no dealers here).

ok, Rodeo, 3.5 2004
3.5L is wrong, dead wrong, 3.2 is my guess.
see here, see country and engines, neither i can guess.
http://en.wikipedia.org/wiki/Isuzu_Wizard
which engine ReALLY ?
Not the Rodeo SPORT , answers below are 3.2L non sport.

Speedo dead. what about Odometer.?????
is replace sensor a statement or a question?
replaced with a "d"
my guess it was a question. and guess.
step 1 and 2 all electrical problems.
1: test the fuses, related. Fuse #11?
2: battery fully charged, at 12.6vdc, not 10v, at 10 electronincs dont work right. fix battery. or charge system.

now how does the 04 work.?
the VSS sensor feed data to many things.
PCM (for fueling data)
Speedometer
Odometer
ABS
supension control unit.
cruise control
etc.

if the odometer works its not the VSS.
see?
the cluster is 100% electronic, ....

VSS is input to Speedo and the odometer is electronic inside
same, so if VSS is bad, both die.
fact.
if only the speedo is bad, then it is bad.

scan the PCM and not guess.
the PCM reports a bad VSS, with 100% assurance.

a real DTC code.
17 , 94 Accord
the means VSS is dead, vehical speed sensor (miles per hour)
so , that begs the question is the speedometer dead or odometer
dead or acting funny IN ANY WAY?
is this an A/T Car or M/T car, both have VSS, so... cant answer.
Auto or stick, ill pretend, AUTO.
VSS moves all over the place, in all cars. all models and all years.
on this car, its odd.
quote FSM:
Accords and Preludes use an external sensor mounted on top of the power steering speed sensor in the engine compartment. The power steering speed sensor is gear-driven and controls the steering boost in relation to the speed of the vehicle. An electric pulser unit is mounted on top of this unit and is coupled to it by a small shaft. The motion from the lower unit is transferred to the upper unit; the resultant electrical signal is sent to the appropriate control units.

most cars old use the speedometer VSS sensor inside
on newer cars 1996 (on avg) the sensor is on the tail shaft. and in speedo.
on very new cars there are 3 VSS.... (dont ask)

on my 96 car, the tranny VSS can fail and then FALL back to the
SPEEDO head. and tranny still shifts but is funky,
the FSM covers all this, i recommend getting one, to understand
how it all works.

your car has and electronic speedometer
the VSS orange wire , sends speed data to the PCM, TCM, cruise.
the PCM then sets the speedo dial, and uses this info to run TCM
controls to the transmission.
your orange wire signal is dead or flaky.

Well you know it does not have a speedo cable since you replaced the speed sensor in the transmission.
My guess would be a problem with the speedo or cluster.

In 2.8 Pajero the speedo receive electronic signal from the VSS sensor, but if the speedo for any reason stop working, O/D will stop work because the Trans ECU needs signal from the speedometer electronics to made the gear change into O/D

Hello wsarah03,

There is a Vehicle Speed Sensor (VSS) mounted on the transaxle, that is a good place to start. The VSS tells the powertrain management system when and how to shift the transmission and also gives the speedometer it's signal.

From your description that the speedometer quit working at the same time I would suspect the a faulty VSS.

Regards,
netvan

does your cruise control work? If not, check the wiring from the VSS to the speedo cluster. Check VSS connector closely for pin pudhout or corrosion

Sometimes, the VSS siganl is converted by the instrument cluster and sent to the PCM and speedo.

Check engine light on?


Speedometer
The electronic speedometer (17255) receives a speed signal from the vehicle speed sensor (VSS) (9E731). This sensor is also used to sense vehicle speed for the engine management system and to regulate the cruise control when equipped.
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Vehicle Speed Sensor The Vehicle Speed Sensor (VSS) (Figure 53) is a variable reluctance or Hall-effect type sensor that generates a waveform with a frequency that is proportional to the speed of the vehicle. If the vehicle is moving at a relatively low velocity, the sensor produces a signal with a low frequency. As the vehicle velocity increases, the sensor generates a signal with a higher frequency. The PCM uses the frequency signal generated by the VSS (and other inputs) to control such parameters as fuel injection, ignition control, transmission/transaxle shift scheduling and torque converter clutch scheduling.

the speedo could be the sensor on the gearbox the lights not working could be the bulbs have blown

This is caused by the little circuit board that runs the speedo or a Vehicle Speed Sensor problem, have any Kragen auto or Auto Zone run a trouble code test to see if a VSS trouble code is present in the memory, if nothing shows replace the speedometer or have it repaired, if there is a code for the VSS replace the sensor on the transmission.