The clutch slave cylinder in your 88 Ranger is the part of the hydraulic clutch assembly that pushes the pressure plate against the clutch disc, causing the clutch to engage. Fluid flowing from the clutch master cylinder into the slave cylinder activates the slave cylinder. The clutch pedal controls the master cylinder. Fluid flows out of the clutch slave cylinder and back into the clutch master cylinder when the clutch pedal is released. The clutch slave cylinder may need to be replaced if the clutch is no longer working correctly.
Tools Used: Clutch Coupling Tool T88T-70522-A, Torque wrench, Drain pan (optional)
Install Clutch Slave Cylinder
Disconnect the battery from the engine by removing the cables to ensure safety. Disconnect the clutch master cylinder and pushrod from the clutch pedal to prevent damage to the master cylinder due to erroneous pressing of the clutch pedal.
Use the clutch coupling tool T88T-70522-A to remove the clutch coupling from the transmission. Pull back the white plastic sleeve and pull on the clutch hose to remove it.
Take the transmission out of the vehicle. Make sure the gear shifter is in a forward gear and not in neutral or reverse. You may have to use a drain pan in case of transmission fluid leaking during the removal process.
Unscrew the two bolts holding the clutch slave cylinder on to the transmission and gently pull it off the input shaft. Gently slide the new clutch slave cylinder onto the input shaft and replace the two bolts that hold it on the transmission. Torque the two bolts to 13 to 19 lb.-ft. of torque.
Re-install the transmission to the vehicle and reattach the clutch hose inside the white plastic sleeve. Use the clutch coupling tool to reattach the clutch coupling to the transmission.
Re-connect the pushrod to the clutch pedal and the clutch master cylinder. Loosen the bleed screw on the slave cylinder and wait for transmission fluid to start to leak out. Tighten the bleed screw and push the clutch to the floor and rapidly release it up to 10 times.
Check the transmission fluid to make sure it is completely full. Have another person hold the clutch pedal to the floor while you loosen the bleed screw one more time to release any leftover air. Once the air is completely out, tighten the bleed screw and release the clutch pedal.
Reconnect the battery and start the engine. Drive the engine around to test that the clutch is functioning properly.
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