PINPOINT TEST I: REAR SUSPENSION NOISE z
WARNING: The electrical power to the air
suspension system must be shut off prior to hoisting,
jacking or towing an air suspension vehicle. This can
be accomplished by turning off the air suspension
switch. Failure to do so can result in unexpected
inflation or deflation of the air springs, which can result
in shifting of the vehicle during these operations.
z Raise and support the vehicle.
z Check the steering system for wear or damage. Carry out a
steering linkage test. Refer Section 211 - 00 .
z Inspect the tire wear pattern. Refer to Tire Wear Patterns
chart in this section.
z Are the steering components worn or damaged? REPAIR the steering
system. INSTALL new
components as necessary.
TEST the system for normal
operation.
No
GO to
H3 .
H3 FRONT SHOCK ABSORBER/STRUT CHECK
z
Check the front shock absorbers/strut mounts for loose
bolts or nuts.
z Check the front shock absorbers/struts for wear or damage.
Carry out a "bounce test".
z Are the front shock absorbers/struts loose or
damaged? Yes
TIGHTEN to specifications if
loose. INSTALL new front
shock absorbers/struts if
damaged. TEST the system
for normal operation.
No
GO to
H4 .
H4 CHECK THE FRONT SPRINGS
z
Check the front spring and front spring mounts/brackets for
wear or damage.
z Are the front springs or spring mounts/brackets worn
or damaged? Yes
REPAIR or INSTALL new
components as necessary.
TEST the system for normal
operation.
No
GO to
H5 .
H5 CHECK THE CONTROL ARMS/RADIUS ARMS
z
Inspect the control arm bushings for wear or damage.
z Inspect for twisted or bent control/radius arm.
z Are the control/radius arms damaged or worn? Yes
REPAIR or INSTALL new
components as necessary.
TEST the system for normal
operation.
No
GO to
H6 .
H6 CHECK THE STABILIZER BAR/TRACK BAR
z
Check the stabilizer bar/track bar bushings and links for
damage or wear.
z Check the stabilizer bar/track bar for damage.
z Check for loose or damaged stabilizer bar isolators or
brackets.
z Are the stabilizer bar/track bar components loose, worn
or damaged? Yes
REPAIR or INSTALL new
components as necessary.
TEST the system for normal
operation.
No
Suspension system OK.
CONDUCT diagnosis on
other suspect systems.
Test Step Result / Action to Take Klj . 54 ba
702003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...
PINPOINT TEST J: WHEEL AND TIRE I1 ROAD TEST THE VEHICLE
z
Test drive the vehicle.
z NOTE: An assistant will be needed for this road test.
z During the road test, drive the vehicle over a rough road.
Using ChassisEARs, determine from which
area/component the noise is originating.
z Is there a squeak, creak or rattle noise? Yes
GO to
I2 .
No
The suspension system is
OK. Conduct a diagnosis on
other suspect systems. I2 REAR SHOCK ABSORBER/STRUT CHECK
z
WARNING: The electrical power to the air
suspension system must be shut off prior to hoisting,
jacking or towing an air suspension vehicle. This can
be accomplished by turning off the air suspension
switch. Failure to do so can result in unexpected
inflation or deflation of the air springs, which can result
in shifting of the vehicle during these operations.
z Raise and support the vehicle.
z Check the rear shock absorber/strut mounts for loose bolts
or nuts.
z Check the rear shock absorbers/struts for damage. Carry
out a shock absorber check.
z Are the rear shock absorbers/struts loose or damaged? Yes
TIGHTEN to specifications if
loose. INSTALL new rear
shock absorbers/struts if
damaged. TEST the system
for normal operation.
No
GO to
I3 .
I3 CHECK THE REAR SPRINGS
z
Check the rear springs and rear spring mounts/brackets for
wear or damage.
z Are the rear springs or spring mounts/brackets worn or
damaged? Yes
REPAIR or INSTALL new
components as necessary.
TEST the system for normal
operation.
No
GO to
I4 .
I4 CHECK THE CONTROL ARMS/TRAILING ARMS
z
Inspect the control arm/trailing arm bushings for wear or
damage. Check for loose control arm/trailing arm bolts.
z Inspect for twisted or bent control arm/trailing arms.
z Are the control arm/trailing arms loose, damaged or
worn? Yes
REPAIR or INSTALL new
components as necessary.
TEST the system for normal
operation.
No
GO to
I5 .
I5 CHECK THE STABILIZER BAR/TRACK BAR
z
Check the stabilizer bar/track bar bushings and links for
damage or wear.
z Check the stabilizer bar/track bar for damage.
z Check for loose or damaged stabilizer bar isolators or
brackets.
z Are the stabilizer bar/track bar components loose, worn
or damaged? Yes
REPAIR or INSTALL new
components as necessary.
TEST the system for normal
operation.
No
Suspension system OK.
CONDUCT diagnosis on
other suspect systems.
Test Step
Result / Action to Klj . 55 ba
702003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...
