Ford Aerostar 1986-1997 Repair Guide

Speedometer Cable



Standard Model

See Figures 1 and 2

  1. Disconnect the negative battery cable.
  3. Raise the vehicle and support it safely on jackstands.
  5. Disengage the cable assembly from the transmission by removing the retainer bolt and bracket, or removing the retainer clip. Once the retainer is removed, slowly pull the cable from the transmission.

On vehicles equipped with a transmission-mounted speed sensor, remove the speedometer cable by removing the retainer clip and pulling the cable from the sensor.

  1. Disengage all remaining cable securing clips.

Click image to see an enlarged view

Fig. Fig. 1: Standard speedometer connection at the transmission body

Click image to see an enlarged view

Fig. Fig. 2: Speedometer connection with speed sensor

  1. Push the grommet out of the floor pan and feed the cable through the floor pan opening into the cab.
  3. Remove the screw holding the cable clip to the steering column bracket.
  5. Remove the instrument cluster housing and the cluster retaining screws. Lift the cluster out enough to access the speedometer cable.
  7. Disconnect the speedometer cable from the speedometer and remove the cable.

To install:
  1. Feed the speedometer cable through the dash panel to the floor of the vehicle.
  3. Connect the speedometer cable to the speedometer head.
  5. Attach the clip to the steering column bracket.
  7. Feed the cable through the floor pan hole to the transmission. Install the rubber grommet around the hole.
  9. Lubricate the cable core exposed at the transmission ferrule with silicone grease. Apply a coating of polyethylene grease to the O-ring on the ferrule.
  11. Lubricate the inside diameter with speedometer cable lubricant (DZAZ-19581-A or equivalent).
  13. On speedometer cables which are connected to a speed sensor, assemble the driven gear retainer to the driven gear with the retainer tabs toward the gear teeth.
  15. Insert the driven gear and cable into the transmission and retain with the clamp by tightening the retaining bolt to 20-25 inch lbs. (2-3 Nm), or secure in place with the retainer clip.
  17. If installing a speedometer cable into a speed sensor, insert the cable end into the speed sensor, aligning the grove in the cable with the slot in the sensor body. Install the retainer clip to secure in place.
  19. Secure the cable with the clips and clamps at the locations indicated by the tape on the cable, then lower the vehicle.

The speedometer cable routing should avoid sharp bends and the cable should be straight for approximately 8 in. (20cm) from the speedometer.

Electronic Model

The electronic instrument cluster does not use a speedometer cable. Instead, a wire harness is used to relay information from a speed sensor to the instrument cluster and speedometer.