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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 37 (Parking Brake System - Parking Brake & Actuation) >> Diagnostic Tests >> Parking Brake >> Pinpoint Tests >> Pinpoint Test A: The Parking Brake Will Not Apply >> Pinpoint Test A: The Parking Brake Will Not Apply

Pinpoint Test A: The Parking Brake Will Not Apply

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 CHECK THE PARKING BRAKE CONTROL 
    • Apply the parking brake control.
    • Does the parking brake control move? 
    1. YES  : Go to  A2.
    2. NO  : Go to  A3.
  2. A2 CHECK FOR BROKEN CABLES 
      NOTE: Have an assistant apply and release the parking brake control to help isolate disconnected cables or cables that do not move.
    • Inspect the following items for damage and correct connections:
      • Parking brake control
      • Front cable
      • Equalizer
      • LH rear cable
      • RH rear cable
      • Rear brake caliper actuators
    • Is any damage found or are any components disconnected? 
    1. YES  : CONNECT the component(s) or INSTALL a new parking brake component(s) as necessary. TEST the system for normal operation.
    2. NO  : VERIFY that the rear pads are within thickness specifications. REFER to Specifications in BRAKE SYSTEM - GENERAL INFORMATION article. If the rear pads are OK, INSTALL new rear brake calipers. REFER to REAR DISC BRAKE article.
  3. A3 ISOLATE THE PARKING BRAKE CONTROL AND FRONT PARKING BRAKE CABLE 
      Fig 1: Isolating Parking Brake Control & Front Parking Brake Cable
      GF0015389Courtesy of FORD MOTOR CO.
    • Disconnect the LH and RH rear cables from the equalizer and release the cables from the body bracket.
    • Apply the parking brake control.
    • Does the parking brake control move? 
    1. YES  : Go to  A4.
    2. NO  : INSTALL a new parking brake control. REFER to Parking Brake Control  in this article. TEST the system for normal operation.
  4. A4 ISOLATE THE REAR PARKING BRAKE CABLES 
      Fig 2: Isolating Rear Parking Brake Cables
      GF0015390Courtesy of FORD MOTOR CO.
    • Disconnect the LH and RH parking brake cables from the subframe brackets and the brake calipers.
    • While holding the cable conduit, attempt to slide the cable inside the conduit.
    • Does the cable slide freely inside the conduit? 
    1. YES  : INSTALL new rear brake calipers. REFER to REAR DISC BRAKE article.
    2. NO  : INSTALL a new rear brake cable(s). REFER to Parking Brake Cable - Rear  in this article. TEST the system for normal operation.
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