Transmisson not working right, check engine light stays on, odometer stop working and speedometer all at same time.

If the speedo and odometer do not work, the problem is usually the speed sensor in the transmission. If the odometer works but not the speedo, the problem is usually inside the speedometer assembly.

If you have someone check the engine computer for trouble codes, you'll probably find a code for the speed sensor in the transmission.

You could have a faulty speedometer/odometer combination meter causing a false Vehicle Speed Sensor error.
My 1998 Sienna had the following symptoms:
- Speedometer and odometer failed intermittently
- The check engine light would come on and I would get a p0500 code in the OBDII.
- The cruise control would stop working at the same time the speedometer failed.
There is a speed sensor in each one of the tires and they feed the speed information to the ABS ECU. From the ABS ECU the speed signal goes to the speedometer/odometer combination meter, and from there it goes to the Engine Control Module and to the Cruise Control ECU. I could see a signal coming into the speedometer/odometer, but no signal going out. Replacing the speedometer/odometer combination meter fixed the problem.

Vehicle speed sensor. This runs the odometer/speedometer. Top of tranny, a cable runs all the way to the back of the odometer.

The check engine light should come back on at some point.
Chances are the problem is the speed sensor in the transmission.

ever find the problem?im havin same thing

Hi, I can tell you that I was having a simular problem with my 2001 Chevy Silverado. The check engine light would come on and I lost both the speedometer and odometer. I also lost gas gauge, and oil pressure gauge.I would hit a bump and they would start working, but light would stay on. I bought the obd-2 meter to read codes and erase them so the light went off. This continued for 8 months. Finally, I started moving wires around under dash when gauges stopped and they would come on and off? Took me right to the circuit board on the ignition switch. I mean I tried everything possable to solve this and told a G.M. mechanic. He said I was right that it would be the switch and that most of you're wires that go to gauges and speedometer come from the ignition switch. I changed it and it has been fine since. You might try what I did see if you can do this while driving, i don't no, but if so be carful on the road. You may need to take it in also.There is something loose a ground wire or hot doing this. I would bet it is in the ignition switch. Best of luck,
Shastalaker7

Its your ABS system. There is a faulty switch/sensor on the master cylinder. It leaks brake fluid into the wires connected to it and causes the circuit to short, resulting in a blown fuse that controls the AC, odometer, speedometer, cruise control and ABS light to stay on. This can even cause a fire in the vehicle. A fire can occur even when the vehicle is turned off. To correct the problem go to this link - http://www.fordwindstarrecall.info/

Usually the ABS computer knows what it is doing. You may want someone to hookup a scanner to the ABS test port.
When I had my speedometer and odometer act up, it turned out to be a bad alternator. You might want to check yours.

Your speed sensor has failed. The vehicles speedometer is not cable controled, it's controled by a sensor in your transmission. It's a easy fix, but the new sensor is about $80 to $100 depending on where you get it.