Pinpoint Test B: Pedal Eases Down Slowly - Ford Transit 2002 Owner's Manual

INSTALL a new brake master cylinder.
REFER to:
Actuation, Removal and Installation) /
Brake Master Cylinder - LHD FWD
Removal and Installation).
TEST the system for normal operation.
No
VERIFY the customer concern.
PINPOINT TEST B : PEDAL EASES DOWN SLOWLY
TEST
CONDITIONS
B1: CHECK THE BRAKE PEDAL OPERATION
Depress the brake pedal.
1
Does the pedal ease slowly?
Yes
GO to
No
Refer to the Brake Master Cylinder Component Test in this procedure.
B2: CHECK FOR BRAKE SYSTEM LEAKS
Check for external brake system leaks.
1
Are any leaks present?
Yes
REPAIR as necessary. ADD fluid and BLEED the brake system.
REFER to:
Information, General Procedures) /
Brake System Pressure Bleeding
Information, General Procedures).
TEST the system for normal operation.
No
GO to
B3: CHECK THE AIR INTAKE FILTER
Check the air intake filter.
1
Is the filter damaged in any way
Yes
REPAIR as necessary. TEST the system for normal operation.
No
GO to
B4: PERFORM A BRAKE MASTER CYLINDER BYPASS CONDITION TEST
Carry out a brake master cylinder bypass Condition Test. Refer to the
1
Brake Master Cylinder Component Test in this procedure.
Was a concern found?
Yes
INSTALL a new brake master cylinder.
REFER to:
Actuation, Removal and Installation) /
Brake Master Cylinder - LHD FWD
Removal and Installation).
TEST the system for normal operation.
No
GO to
B5: CHECK THE BRAKE BOOSTER CHECK VALVE
Disconnect the brake booster check valve vacuum hose at the manifold.
1
Blow into the hose attached to the brake booster check valve.
2
Does air pass through the valve?
Yes
INSTALL a new brake booster check valve.
No
Brake Master Cylinder - RHD FWD
DETAILS/RESULTS/ACTIONS
B2.
Brake System Bleeding
B3.
B4.
Brake Master Cylinder - RHD FWD
B5.
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