Mazda 323/626/929/GLC/MX-6/RX-7 1978-1989

Speedometer Cable



See Figure 1

Speedometer cable removal and installation requires reaching behind the instrument cluster and disconnecting the cable from the rear of the speedometer. On some vehicles, the cluster must be removed to gain access to the speedometer.

If the cable housing is intact, the cable core may be removed separately.

  1. Reach behind the instrument cluster and disconnect the speedometer cable by depressing the flat portion of the connector, while pulling the connector off.
  3. Pull the cable core out of the cable housing. (If the entire cable core does not come out due to breakage, it will be necessary to unscrew the speedometer cable housing at the transmission/transaxle, and pull the lower end of the cable out.)
  5. If necessary, disconnect the cable housing from the transmission/transaxle. Some cables are protected by a dust boot where the cable connects to the transmission/transaxle. Raise the vehicle and support it safely, as required. If there is a dust boot installed, pull it up a couple of inches to uncover the cable connector. If the dust boot is worn, replace it.

To install:
  1. If applicable, reconnect the lower end of the cable housing to the transmission/transaxle. Make sure the cable connector on the transmission/transaxle is tightened properly.
  3. If installing a new cable core, lubricate it with speedometer cable lubricant (powdered graphite), and insert it into the instrument cluster end of the cable housing.

Take care not to force any radical bends, as these will cause the cable core to bind and wear out quickly.

  1. Work the cable core through the housing until it bottoms against the drive gear in the transmission/transaxle. Then, simultaneously push the core inward while rotating it until the square end of the core engages and seats against the driven gear.
  3. Reconnect the cable housing to the back of the speedometer. When attaching the cable to the instrument cluster, make sure the square end of the core fits into the drive yoke in the cable connection.

Click image to see an enlarged view

Fig. Fig. 1: If necessary, unfasten and disconnect the cable housing from the transmission/transaxle