Ranger 2WD V6-177 2.9L (1989)
Speedometer Head: Description and Operation
Service repair procedures on the speedometer are not included as they require special tools and extreme care when making repairs and adjustment that
only an experienced speedometer mechanic should attempt.
The speedometer has two main parts, speedometer head and speedometer drive cable. When speedometer fails to indicate speed or mileage, cable or
cable housing is probably broken.
On vehicles equipped with speed control, there is a speed sensor attached to the transmission. This is used to sense the revolutions of the cable
assembly and to regulate speed control.