Ford 2003 Mustang Workshop Manual page 97

Is the ticking noise gone?
B2 CHECK FOR TICKING NOISE AT THE FUEL
INJECTOR
Using an EngineEAR, listen at the fuel
injectors by placing a probe on each injector.
To isolate the faulty injector, disconnect the
injector electrical connector and listen for the
noise.
Is the fuel injector the source of the ticking
noise?
B3 CHECK THE BELT TENSIONER FOR TICKING
NOISE
Inspect the accessory drive. Check for the belt
tensioner bottoming at end of travel or not at
end of stroke.
Using an EngineEAR, listen at the belt
tensioner.
Is the belt tensioner the source of the
noise?
B4 CHECK THE WATER PUMP FOR TICKING
NOISE
Using an EngineEAR, listen at the water pump
for ticking noise.
Is the water pump the source of the noise?
B5 CHECK FOR AN OBSTRUCTION OF THE
COOLING FAN
Inspect the cooling fan for obstructions.
Check the cooling fan and shroud for wear or
damage.
Was there an obstruction or does the
cooling fan show signs of damage?
B6 CHECK THE OIL PUMP FOR TICKING NOISE
Check the oil pump using EngineEARs and
probe at the oil filter adapter to verify the oil
pump as a source.
Is the oil pump the source of the noise?
B7 CHECK VALVE LIFTERS OR LASH
ADJUSTERS FOR CORRECT OPERATION
Check valve lifter/lash adjuster for correct
operation, using EngineEARs.
Are the valve lifters/lash adjusters
CHECK for TSB for applicable vehicle.
REPAIR as necessary. TEST the system
for normal operation.
No
GO to B2 .
Yes
INSTALL a new fuel injector. REFER to
Section 303-04A for 3.8L engines or
Section 303-04B for 4.6L (2V) engines.
TEST the system for normal operation.
No
GO to B3 .
Yes
INSTALL a new belt tensioner. TEST the
system for normal operation.
No
GO to B4 .
Yes
INSTALL a new water pump. REFER to
Section 303-03A . TEST the system for
normal operation.
No
GO to B5 .
Yes
REPAIR or INSTALL a new cooling fan.
REFER to Section 303-03A
system for normal operation.
No
GO to B6 .
Yes
INSTALL a new oil pump. REFER to
Section 303-01A for 3.8L engines or
Section 303-01B for 4.6L (2V) engines.
TEST the system for normal operation.
No
GO to B7 .
Yes
VERIFY customer concern. CONDUCT a
diagnosis of other suspect components.
. TEST the