Ford 2003 Mustang Workshop Manual page 522

4481 kPa (510-650 psi)?
PINPOINT TEST D: EXCESSIVE/ERRATIC BRAKE PEDAL TRAVEL
Test Step
D1 CHECK FOR SPONGY PEDAL
Key in ON position.
Operate the brake pedal and note pedal feel.
Does the pedal feel spongy?
D2 CHECK THE BRAKE PEDAL
Inspect the brake pedal and bracket for
binding, obstruction or damage.
Is the brake pedal OK?
D3 CHECK THE BRAKE COMPONENTS
Inspect the calipers bolts, anchor plate bolts
and anti-rattle springs for binding, damage,
contamination and correct installation.
Are the bolts and springs OK?
D4 CHECK THE BOOSTER AND MASTER
CYLINDER
Check the power brake booster and brake
master cylinder for correct installation and
correct push rod adjustment. Refer to
Section 206-06
Are the power brake booster and the
brake master cylinder OK?
PINPOINT TEST E: HYDRO-BOOST, NO POWER ASSIST
Test Step
E1 CHECK FLUID LEVEL IN POWER STEERING
PUMP
Check fluid level in power steering pump.
Is level within specification?
E2 CHECK ACCESSORY DRIVE BELT
and to Section 206-07 .
INSTALL a new proportioning valve.
RETEST for normal operation.
Result / Action to Take
Yes
BLEED the brake system. REFER to
Bleeding — System in this section.
RETEST for normal operation.
No
GO to D2 .
Yes
GO to D3 .
No
REPAIR or INSTALL a new brake pedal as
necessary. RETEST for normal operation.
Yes
GO to D4 .
No
REPAIR or INSTALL new components as
necessary. RETEST for normal operation.
Yes
INSPECT the front wheel bearings for
wear, damage and correct installation and
the rear axle end play. CORRECT as
necessary. RETEST for normal operation.
No
CORRECT as necessary. RETEST for
normal operation.
Result / Action to Take
Yes
GO to E2 .
No
CHECK for leakage of power steering
fluid. ADD fluid as necessary.