How to Bleed the Clutch Pedal on a '95 F-250

The 1992 was nothing if not versatile. Available in dozens of different configurations and trim levels, the ninth-generation also offered no less than five different engines and seven different transmissions. In this model year, the F150 used manual transmissions with both concentric -- integrated -- and external slave cylinders. The bleed procedure for both is similar, but you'll have to do a little more work to bleed the external cylinder.

Instructions

Concentric Slave Cylinder

1

Clean any dirt and grease from the slave cylinder reservoir cap, remove the cap and fill the reservoir to the top with DOT 3 brake fluid. Attach a drain tube to the bleed screw on the bottom of the slave cylinder.

2

Open the bleed screw; gravity will do the work here, pulling the fluid from the reservoir and through the bleed screw. Watch for air bubble in the fluid stream. When all the air goes away, tighten the bleed screw.

3

Depress the clutch pedal, hold for one to two seconds, and release as rapidly as possible. Pause for one to two seconds, and repeat ten more times. Check the fluid level in the reservoir. Fluid should be level with the step with the diaphragm removed. Repeat six to seven times.

4

Hold your clutch pedal to the floor, then have your assistant open the bleed screw to expel excess air. Close the bleed screw when the air is gone. Recheck the fluid level and double-check for proper clutch operation.

External Slave Cylinder

5

Clean the reservoir cap and slave cylinder in the area of the tube connection. Remove the slave cylinder from the transmission bellhousing, then use a 3/21-inch punch to drive out the pin that holds the tube. Remove the tube from the slave cylinder and place end of tube into a waste-fluid container.

6

Hold the slave cylinder so that the connector port is at approximately 30 degrees. Fill it with DOT 3 brake fluid. Rock or push on the pushrod to remove all air in the cylinder. Make sure that all of the air is out before reinstalling the slave cylinder.

7

Open the reservoir cap. Once you break the vacuum, fluid will rush out of the slave cylinder tube. Quickly fill the reservoir up, and reinstall the cap to slow fluid loss after all the air is out of the system. Reinstall the tube back into the slave cylinder, and reinstall the pin that holds the tube.

8

Reinstall the slave cylinder on the transmission bellhousing, check the fluid level and check for proper clutch operation.