Ford 2003 Mustang Workshop Manual page 108

appropriate workshop manual for the service procedures.
Secure the brake drums (if so equipped), by installing wheel
hub bolt nuts, reversed.
Carefully accelerate the drivetrain while checking for vibration.
Is the vibration present?
PINPOINT TEST L: CLUTCH VIBRATION
L1 CHECK ENGINE COMPONENTS FOR GROUNDING
NOTE: Make sure the clutch is the cause of the
vibration concern. The vibration should occur during
clutch operation. The clutch can also be difficult to
engage or disengage. Eliminate all related systems
before checking the clutch components.
NOTE: Check the driveline angles and driveshaft
runout before disassembling the clutch system. Refer
to Section 205-00
specifications.
Check the powertrain/drivetrain mounts, exhaust
manifolds or other engine components for grounding
on the chassis.
Are any mounts or engine components
grounded?
L2 CHECK THE ACCESSORY DRIVE
Remove the accessory drive belt.
Does the vibration stop with the accessory drive
belt removed?
L3 CHECK FOR LOOSE CLUTCH PRESSURE PLATE
BOLTS
Check for loose clutch pressure plate bolts. Inspect
the clutch pressure plate for damage or for material
between the pressure plate and flywheel.
Are there any loose bolts or damage?
L4 CHECK THE CLUTCH DISC SPRINGS
Check for worn, broken or loose clutch disc springs.
Are the clutch springs worn, broken or loose?
L5 CHECK THE CLUTCH DISC SPLINES
Inspect the clutch disc splines for damage or wear.
Is there damage or wear?
Test Step
for the correct driveline angle
assemblies as necessary.
TEST the system for
normal operation.
Result / Action to Take
Yes
REPAIR as necessary. TEST the
system for normal operation.
No
GO to L2 .
Yes
DIAGNOSE the accessory drive
components.
No
GO to L3 .
Yes
TIGHTEN the bolts to
specifications or if damaged,
INSTALL a new clutch pressure
plate. REFER to Section 308-01
TEST the system for normal
operation.
No
GO to L4 .
Yes
INSTALL a new clutch disc.
REFER to Section 308-01
the system for normal operation.
No
GO to L5 .
Yes
INSTALL a new clutch disc.
REFER to Section 308-01
.
. TEST
. TEST