Ford Mustang (1999-2004) Service Manual: Parking Brake (Diagnosis and Testing)
Inspection and Verification
1. Verify the customer's concern by operating the parking brake system to duplicate the condition.
2. Inspect to determine if one of the following mechanical or electrical concerns apply:
Visual Inspection Chart
Mechanical |
Electrical |
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3. If the inspection reveals obvious concern(s) that can be readily identified, service as necessary.
4. If concern(s) remains after the inspection, determine the symptoms. GO to Symptom Chart .
Symptom Chart
Condition | Possible Sources | Action |
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Pinpoint Tests
PINPOINT TEST A: PARKING BRAKE WILL NOT APPLY
Test Step | Result / Action to Take |
A1 CHECK THE PARKING BRAKE CABLES | Yes INSTALL a new parking brake cable as necessary. TEST the system for normal operation. No GO to A2 . |
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A2 CHECK THE PARKING BRAKE CONTROL | Yes INSTALL a new parking brake lever. RESTORE vehicle and TEST the system for normal operation. No REPAIR the binding condition in the parking brake control. TEST the system for normal operation. |
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PINPOINT TEST B: PARKING BRAKE WILL NOT RELEASE
Test Step | Result / Action to Take |
B1 CHECK PARKING BRAKE CONTROL | Yes GO to B2 . No INSTALL a new parking brake control. RESTORE the vehicle and TEST the system for normal operation. |
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B2 CHECK PARKING BRAKE CABLES | Yes GO to B3 . No INSTALL new parking brake cables. RESTORE the vehicle and TEST the system for normal operation. |
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B3 CHECK REAR PARKING BRAKE LEVERS | Yes INSTALL a new parking brake lever. RESTORE vehicle and TEST the system for normal operation. No REPAIR or INSTALL a new rear brake component if worn or damaged. TEST the system for normal operation. |
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Parking Brake (Description and Operation)
The parking brake system is cable-actuated and controlled by an independent
hand-operated parking
brake control (2780). To apply parking brake, pull parking brake control upward
as far as ...
Parking Brake Cable Tension Release
1. CAUTION: If any component in the parking brake system requires
repair or if the
rear axle housing (4010) is removed, the cable tension must be released.
Place the parking brake control (2780) ...
Other materials:
Component Test
Carry out the appropriate Functional Test(s) as determined in Inspection and
Verification.
Functional Test I (Buckle and Tongue)
The safety belt buckle and tongue assembly must operate freely during the
latching and unlatching
function. Fasten the safety bel ...
Cylinder Block Core Plug Replacement
Special Tool(s)
Slide Hammer
100-001 (T50T-100-A)
Material
1. Use a slide hammer or tools suitable to remove the cylinder block core
plug.
2. Inspect the cylinder block plug bore for any damage that would interfere
with the correct sealing ...
Component Tests
Grid Wire Test
1. Using a bright lamp inside the vehicle, inspect the wire grid from
the exterior. A broken grid wire
will appear as a brown spot.
2. Run the engine at idle. Set the rear window defrost switch to ON. The
indicator light should
co ...