Where is the speed sensor located on a 1990 dodge van b 250?

The speed sensor on a 1990 Dodge B250 van is typically located on the output shaft of the transmission. However, the exact location can vary slightly depending on the transmission type (e.g., automatic or manual). It's usually a relatively small sensor, often magnetic, mounted on or near the transmission case.

To locate it with certainty:

1. Consult a repair manual: A Haynes or Chilton repair manual specific to your 1990 Dodge B250 will show a diagram and provide the exact location. This is the most reliable method.

2. Look near the transmission: Get under the van (safely secured on jack stands) and carefully inspect the transmission. Look for a sensor that resembles a small, cylindrical device with a wire harness connected.

3. Trace the wiring: The speed sensor wire will lead to the vehicle's computer (PCM/ECU). You could potentially trace the wire from the connector back to the sensor. Be cautious when doing this and avoid damaging any wiring.

Important Note: Before working under your van, ensure it's properly secured on jack stands and that you have taken all necessary safety precautions.