I need to find out where the output speed sensor goes or 96 dodge grand caravan

There is an input and output speed sensor. They look identical. The input is just user the cooler hoses and the output is to the right as your standing in front of the ven. A one inch socket will work to remove them. The hole in the transmission will be slightly smaller than one inch. If you need an exact size you can remove one of them nod measure it.

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The speed sensor could indeed be preventing the van from switching gears. Have this checked into or you could do it yourself by reading this article and following the link it provides for testing. http://www.engine-light-help.com/speed-sensor.html

Hope this helps:)

you can scan it,and see what the output speed sensor is putting out.most times you will have a bad vechicle speed sensor

i would start with the speed sensor on tip of the tranny if i was you. generally when the speed sensor goes it de- rates engine, because computer doesn't know what is happening.its located on passenger side where axle goes into transmission.

I am assuming you have a 4-speed transmission?
There are 2-speed sensor on the front of the transmission. Input and Output Speed Sensors.
They are level with each other, right above the top line of the Solenoid (wiring harness goes into this box-like assembly) The one that is closest to the Solenoid is the Input Sensor. The one (at the same level) towards the left side of the van is the Output sensor.
I believe a 1-in wrench will work, after you unplug the sensor. Torque going on for both is 20 ft-lbs. Before replacing the sensors - you may remove the sensors and clean the metal particles off the interior tips of the sensors and reinstall and check operations.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at fixya.com

Mounted on the trany is a speedometer sensor. The vehical will not up-shift it, sensor, is malfunctioning. The vehicles computer doesn't know that it is not going fast enough to change gears.

are you sure its not po720!! that is --output speed sensor curcuit.. no 72 listed.

I am looking for a diagram that shows were the speed sensor is located on the transmission.Of a 96 Grand Caravan.

sound like the vechicle speed sensor.

Torque converter sensor: Far side of bellhousing next to the motor
Input speed sensor: On fronst side below cooler lines
Output speed sensor: Directely right of the input speed sensor near the shifter shaft
Range sensor: Mounted on top of valve body
Temp sensor: In the range sensor mounted on top of valve body