Ford 2003 Mustang Workshop Manual page 89

Transmission
rattling/clattering
noise—occurs in
neutral or in gear, at
idle
Transmission
rattling/clattering
noise—noise at idle in
neutral
Transmission whine—
a mild whine at
extreme speeds or
high rpm
Transmission whine—
a high pitched whine,
also described as a
squeal
Gearshift lever
loose.
Gearshift linkage
rods worn or
damaged.
Incorrect fluid level
or fluid quality.
Worn or rough
reverse idler gear.
Rough running
engine, cylinder
misfire.
Excessive backlash
in gears
Worn countershaft
gears.
Rotating
gears/geartrain.
Transmission gears
are worn (high
mileage vehicle).
TIGHTEN the bolts to
specification. REFER to
Section 308-03A for
T50D transmissions or
Section 308-03B for
TR3650 transmissions.
CHECK the linkage
bushings for wear.
INSTALL new linkage
rods as necessary.
REFER to the
appropriate workshop
manual for the service
procedures.
CHECK that the
transmission is filled to
the correct level and
with the specified fluid.
REFER to Section 308-
03A for T50D
transmissions or
Section 308-03B for
TR3650 transmissions.
CHECK the reverse
idler gear. REPAIR as
necessary. REFER to
Section 308-03A for
T50D transmissions or
Section 308-03B for
TR3650 transmissions.
CHECK the ignition
system. CARRY OUT a
cylinder power test.
REFER to Section 303-
00 .
CHECK the gear
backlash. ADJUST as
necessary. REFER to
Section 205-02A
for
Ford 7.5 rear axles or
Section 205-02B for
Ford 8.8 integral axles.
REPAIR as necessary.
REFER to Section 308-
03A for T50D
transmissions or
Section 308-03B for
TR3650 transmissions.
Acceptable noise.
Result of normal gear
wear. REPAIR as
necessary. REFER to
Section 308-03A for
T50D transmissions or
Section 308-03B for
TR3650 transmissions.