How to Replace a Clutch Slave Cylinder in a 98 F-150

The clutch slave cylinder in your 1998 Ford F-150 is a part of the truck's hydraulic clutch system and is an essential component of accelerating and braking the F-150. If the slave cylinder begins to malfunction, you may notice an excess amount of liquids leaking from the transmission and you may find that the pedals do not provide as much resistance as they used to. In this situation, the best thing to do is replace the slave cylinder. Replacing the F-150's slave cylinder is a fairly simple process that should take you no more than 30 minutes to perform.

Things You'll Need

  • Socket wrench
  • Drain pan
  • Jack
  • Open the hood of the F-150 and use a socket to disconnect the negative terminal from the battery.

  • Put a drain pan under the F-150's drain plug on the radiator and use a socket wrench to loosen the radiator drain plug. Wait five minutes for the liquids to drain into the drain pan. Tighten the plug when done.

  • Open the driver's door and disconnect the push rod from the clutch pedal by pulling it off. Disconnect the electrical connector of the pedals.

  • Use a jack to lift the F-150 to a comfortable height. Three feet should be sufficient for most people.

  • Use a socket wrench to remove the two bolts from the slave cylinder's hydraulic line and pull off the hydraulic line.

  • Remove the slave cylinder from the F-150 by rotating it clockwise and pulling it out of the F-150's firewall.

  • Install the replacement slave cylinder by pushing it into the firewall and rotating the cylinder counterclockwise. Reattach the hydraulic line and lower the F-150. Reattach the electrical connector and push rod.

  • Reconnect the F-150's negative terminal to the battery and remove the cap from the radiator. Pour the liquids from the drain pan back into the radiator.

  • Reattach the radiator cap and close the hood.