Question about 1996 Ford Taurus

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Car's Speedo wont work and tranny malf

My Vehicle started acting funny as i was on the freeway, it wouldnt shift into a higher gear and kicked out of gear a couple of times, the speedo droped to 0 jumping to 10 now and again then back to 0. I replaced the VSS with one i got from ford (exact match) and vehicle still wont register speedo and shifts randomly into next gear. I removed the Sensor and checked the driven gear to see if it was still intact and it was. the gauges are analog not digital and its a AX4N tranny.I dont understand whats going on could it be a bad sensor i got from the dealer? Please Help

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Inspect the throttle valve control rod. there could be a small part that has worn out, usually made of plastic and the size of a dime. if this part is missing out worn out it will make the trans shift at the wrong time. it happened to my lincoln once and i thought the trans was going out.

Posted on Feb 24, 2009

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Transmission Fault code 17


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.

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1 Answer

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Im having trouble as well with shifting higher than second gear and me speedo doesn't work.checked all fuses replaced vss (both) and still no speedo or shifting. any ides would be great. I have power at buffer and tranny

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1 Answer

I have a 1994 caprice ex police lt1 4l60e. things were fine. for about 2 months.then getting on freeway picking up speed and trans acted like it did not want to up shift. it was already in 2nd. got home,...


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