Pinpoint Test A : The Parking Brake Does Not Apply
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
- A1 CHECK THE PARKING BRAKE CONTROL
- Press the parking brake control pedal.
Does the parking brake control pedal move?
Yes GO to A2. No GO to A5. - A2 CHECK FOR BROKEN CABLES
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NOTE: Have an assistant press and release the parking brake pedal to help isolate disconnected cables or cables that do not move.
Inspect the following items for damage and correct connections.
- Front cable and conduit
- LH rear cable and conduit
- RH rear cable and conduit
- Rear cable brackets
Are the cables in good condition?
Yes GO to A3. No CONNECT the cable(s) or INSTALL a new parking brake component(s) as necessary. TEST the system for normal operation. -
- A3 CHECK THE PARKING BRAKE SHOES, ACTUATOR LEVERS AND HARDWARE
- Remove the rear brake disc, refer to Rear Disc Brake . Inspect the parking brake shoes, actuator levers and hardware.
Are the parking brake shoes, actuator levers and hardware in good condition?
Yes GO to A4. No INSTALL new components as necessary. REFER to Parking Brake Shoes . TEST the system for normal operation. - A4 CHECK THE PARKING BRAKE SHOE ADJUSTMENT
- Check the parking brake shoe adjustment. Refer to Parking Brake Shoe Adjustment .
Are the parking brake shoes adjusted to specification?
Yes INSTALL a new parking brake control. REFER to Parking Brake Control . TEST the system for normal operation. No ADJUST the rear parking brake shoes. REFER to Parking Brake Shoe Adjustment . - A5 ISOLATE THE PARKING BRAKE CONTROL AND FRONT PARKING BRAKE CABLE
- Disconnect the front parking brake cable from the LH rear parking brake cable at the cable union.
- Press the parking brake control pedal.
Does the parking brake control pedal move?
Yes GO to A6. No GO to A7. - A6 ISOLATE THE REAR PARKING BRAKE CABLES
- Disconnect the rear parking brake cables from the parking brake actuating levers.
- While holding the cable conduit, attempt to slide the cable inside the conduit.
Does the cable slide freely inside the conduit?
Yes INSPECT the parking brake shoes, hardware and backing plate. INSTALL new components as necessary. REFER to Parking Brake Shoes . TEST the system for normal operation. No INSTALL new rear brake cable(s). REFER to Parking Brake Cable - Rear, LH or Parking Brake Cable - Rear, RH . TEST the system for normal operation. - A7 ISOLATE THE FRONT PARKING BRAKE CABLE
- Disconnect the front parking brake cable and conduit from the parking brake control.
- While holding the cable conduit, attempt to slide the cable inside the conduit.
Does the cable slide freely inside the conduit?
Yes INSTALL a new parking brake control. REFER to Parking Brake Control . TEST the system for normal operation. No INSTALL a new front parking brake cable. TEST the system for normal operation.