Buick 88959459 Cable Asm,Speedometer

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Remove the instrument cluster to access the speedometer cable. If broken, detach the casing from the transmission to remove any remnants. Before installing a new cable, check for smooth rotation. Inspect the casing for damage and replace if needed. Insert the new cable into the casing, ensuring the transmission end is secure. If detached, reconnect the casing at the transmission. Reinstall the instrument cluster.

To replace a speedometer cable, start by disconnecting the negative battery cable. Then, reach under the dashboard and disconnect the speedometer cable casing from the speedometer head by pressing the retaining spring clip and pulling back on the casing. Remove the dash panel sealing plug from the casing and use pliers to pull out the old core. If the inner cable is broken, remove the lower piece from under the vehicle. Lubricate the new speedometer cable core with special lubricant and push it into the casing, ensuring it is fully engaged in the pinion gear inside the transmission. Reinstall the dash sealing plug and connect the casing to the instrument cluster. Finally, road test the vehicle to check for proper speedometer operation.