Mustang GT V8-4.6L SOHC VIN X (1998)
Technical Service Bulletin # 00-24-1
Date: 001127
Clutch Pedal - Vibration Heard or Felt
Article No.
00-24-1
11/27/00
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VIBRATION - VIBRATION HEARD AND/OR FELT AT CLUTCH PEDAL
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CLUTCH - VIBRATION HEARD AND/OR FELT AT CLUTCH PEDAL
FORD:
1990-2001 MUSTANG
ISSUE
Some vehicles may exhibit a vibration that may be heard or felt at the clutch pedal between idle and 2300 rpm, and goes away when depressing the
clutch at least 25 mm (1"). This may be caused by the lack of reserve, quadrant binding, improper clutch cable routing, lack of preload on the release
lever, improper or failed release bearing, improper pressure plate-to-flywheel bolt torque, or out-of-parallel finger height on pressure plate.
ACTION
Check, inspect and correct above items as described. Refer to the following Service Procedure for details.
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 505000, 505200, 506000, 597997, 702300, 703100
Service Procedure
SERVICE PROCEDURE
After verifying clutch pedal vibration condition, inspect/correct the following items:
1.
Check for clutch reserve:
a.
Set parking brake.
b.
With shift control selector in third gear, clutch disengaged (pedal down) and engine idling, move shift lever to a position halfway between
third gear and Neutral.
c.
Slowly engage clutch (release pedal). The transmission will behave as if in Neutral, but the third gear synchronizer is bypassed.
d.
Gear clash can now be heard if an attempt is made to shift into third gear with the clutch engaged (pedal up), and reserve can now be
measured.
e.
While maintaining light pressure on the shift lever, slowly press the clutch pedal to the floor. At a point in the clutch pedal travel, the gear
clash will stop and the shift selector will slide easily into third.
f.
At the point when the gear clash stops, press the clutch pedal to the floor.
g.
There must be at least 19 mm (0.75") pedal travel from the point where the gear clash stops and the pedal is pressed to the floor to have
adequate reserve. If vehicle has inadequate reserve, replace disc and pressure plate. After replacing the clutch and pressure plate, retest the
vehicle to determine if the condition is repaired.
h.
If the condition still exists, proceed to Step 2.
2.
To check for proper clutch pedal adjustment, pull up on the clutch pedal to the upstop. Pulling up on the pedal ensures that the quadrant is free to
rotate through its complete range of motion against the spring load of the quadrant. This will determine if the quadrant is binding. Cycle the clutch
pedal and recheck for pedal vibration.
3.
Check for proper clutch cable routing and that the cable isolator grommet is seated in the cowl. Refer to Clutch Controls Section of the appropriate
year Mustang Workshop Manual for further details.