How to Bleed a Ford Ranger Clutch Master Cylinder

Written by lee newberry
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How to Bleed a Ford Ranger Clutch Master Cylinder
Unlike today's hydraulic clutch system, early model Ford trucks required only mechanical adjustments. (American vintage truck image by Pierrette Guertin from Fotolia.com)

Since the introduction of the automobile, pickup trucks have been an important part of the industry. The energy crisis of the 1970s forced American automobile manufacturers to compete with Japanese compact pickup truck designs. The Ford Motor Company began importing the widely popular Mazda Courier in 1972. The Ford Ranger platform was available to the American consumer in 1983. Innovations, such as the hydraulic clutch system and fuel injection, improved the Ranger's reliability and performance. Ford recommends bleeding the hydraulic clutch system after servicing or replacing any hydraulic clutch component. Bleeding the clutch master cylinder requires basic automotive repair knowledge.

Skill level:
Easy

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Things you need

  • Wheel chocks (2)
  • Jack
  • Jack stands (2)
  • Shop rag
  • Rubber tubing
  • Box-end wrench
  • DOT 3 brake fluid
  • Bucket

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Instructions

  1. 1

    Disconnect the negative battery cable from the vehicle's battery.

  2. 2

    Place one wheel chock behind each rear wheel assembly. Make sure each wheel chock is pushed securely against the back side of each rear wheel assembly so the vehicle will not roll.

  3. 3

    Raise the front of the vehicle using a jack. Place one jack stand under each "A" arm located behind each front wheel assembly.

  4. 4

    Lower the front of the vehicle on jack stands. Make sure the vehicle is securely supported before removing the jack.

  5. 5

    Locate the clutch master cylinder reservoir, which is on the right side of the engine compartment against the firewall.

  6. 6

    Clean the dirt and grease off of the clutch master cylinder and dust cap using a clean rag or towel.

  7. 7

    Remove the clutch master cylinder dust cap and diaphragm. Fill the clutch master cylinder reservoir to the top with DOT 3 brake fluid. Leave the diaphragm and cap off.

  8. 8

    Locate the clutch slave cylinder and slave cylinder bleed screw. The slave cylinder is located under the vehicle, inside the transmission bell housing. There is access to the slave cylinder bleed screw on the right side of the transmission bell housing through the access porthole.

  9. 9

    Push a piece of rubber tubing onto the bleed screw. Place the loose end of the rubber tubing into an empty bucket.

  10. 10

    Loosen the slave cylinder bleed screw using a box-end wrench, turning the bleed screw counterclockwise. Leave the bleed screw open until a steady stream of hydraulic fluid flows out of the rubber tubing. Tighten the bleed screw. This process fills the slave cylinder reservoir with hydraulic fluid. Do not remove the bleed screw during this process.

  11. 11

    Push the clutch pedal all the way to the floor. Hold the clutch pedal to the floor for two seconds. Release the clutch pedal completely. Repeat this step 10 times.

  12. 12

    Add DOT 3 brake fluid to the "Fill" line on the clutch master cylinder reservoir. Leave the diaphragm and cap off.

  13. 13

    Instruct an assistant to push the clutch pedal all the way to the floor and hold. Loosen the slave cylinder bleed screw. Leave the bleed screw open until all of the excess air escapes from the hydraulic system and a steady stream of hydraulic fluid is flowing from the rubber tubing. Tighten the slave cylinder bleed screw. Release the clutch pedal.

  14. 14

    Add DOT 3 brake fluid to the "Fill" line on the clutch master cylinder reservoir. Reinstall the diaphragm and cap onto the clutch master cylinder.

  15. 15

    Remove the rubber tubing from the slave cylinder bleed screw.

  16. 16

    Raise the front of the vehicle using the jack. Remove the two jack stands. Lower the vehicle to the ground. Remove the two wheel chocks from the rear wheel assemblies.

  17. 17

    Reconnect the negative battery cable to the vehicle's battery.

Tips and warnings

  • Dispose of any used fluids at a fluid recycling centre.

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