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Home >> Ford >> 2011 >> Expedition EL 4WD >> Repair and Diagnosis >> Brakes >> Parking Brake System - Parking Brake & Actuation >> Diagnosis And Testing >> Parking Brake >> Pinpoint Tests >> Pinpoint Test B: The Parking Brake Will Not Release and/or Parking Brake Shoes Drag >> Pinpoint Test B: The Parking Brake Will Not Release And/Or Parking Brake Shoes Drag

Pinpoint Test B: The Parking Brake Will Not Release And/Or Parking Brake Shoes Drag

  1. B1 CHECK THE PARKING BRAKE CONTROL RELEASE HANDLE AND CABLE 
    • Verify that the release handle and cable are connected to the parking brake control.
    • Are the release handle and cable connected? 
      • Yes:  Go To B2  .
      • No:  CONNECT the handle and cable, then TEST the system for normal operation.
  2. B2 CHECK THE REAR PARKING BRAKE CABLES 
    • Disconnect the RH cable from the LH conduit equalizer, then disconnect the LH cable from the front cable.
      Fig 1: Disconnecting RH Cable From LH Conduit Equalizer And LH Cable From Front Cable
      G07457771Courtesy of FORD MOTOR CO.
    • Disconnect the rear parking brake cables from the parking brake actuating levers.
    • While holding the rear cable conduit, attempt to slide the rear cable inside the conduit  .
    • Does the cable slide freely inside the conduit? 
  3. B3 CHECK THE REAR PARKING BRAKE SHOES AND HARDWARE 
    • Remove the rear brake disc. Refer to REAR DISC BRAKES .
    • Inspect the parking brake shoes, hardware and backing plate.
    • Are the shoes, hardware and backing plate in good condition? 
      • Yes:  Go To B4  .
      • No:  INSTALL new components as necessary. TEST the system for normal operation.
  4. B4 ISOLATE THE FRONT PARKING BRAKE CABLE 
    • Press the retaining tabs and disconnect the front parking brake conduit from the parking brake control bracket.
    • Push the front parking brake conduit grommet through the body.
    • Verify that the front cable conduit can slide freely on the cable.
    • Does the conduit slide freely on the cable? 
      • Yes:  INSTALL a new parking brake control. REFER to PARKING BRAKE CONTROL  in this information. TEST the system for normal operation.
      • No:  INSTALL a new front cable. TEST the system for normal operation.