Mustang V8-5.4L SC (2008)
Located at the end of the procedure are Figures 1, 2 and 3 which show the typical appearance of a flywheel and clutch that has been damaged due to
overheating of the clutch. Figures 4, 5 and 6 show the typical appearance of a good flywheel and clutch.
This procedure does not apply to or correct the normal characteristics of the twin-disc cera-metallic clutch used in the Shelby GT5OO vehicle or normal
wear. The twin disc cera-metallic clutch incorporates racing technology to combine a low inertia assembly with a very durable friction material with high
torque capability. Depending on your driving technique, the smoothness of how the clutch reacts to clutch engagements may be different from other
vehicles that use a single disc clutch system. Also refer to pages 8 and 9 of the GT5OO Owner Guide Supplement for additional information.
Normal Operating Characteristics Of The Twin
Disc Cera-metallic Clutch
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Clutch chatter/shudder when engaging the clutch.
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Narrow or abrupt engagement point.
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Hiss upon clutch engagement or disengagement.
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Transmission gear rollover noise at idle.
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Gear rattle noise at very low speeds when in 1st or 2nd gear.
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Normal wear.
Diagnosis And Service Procedure Update
Based on engineering analysis of all of the returned transmission components replaced when performing the prior TSBs, it has been determined that the
synchronizer assemblies and transmission input shafts do not exhibit any abnormal wear that would require transmission component replacements.
A diagnostic procedure has been developed to confirm that the transmission synchronizers are operating properly and prevent any unnecessary
transmission repairs.
Transmission Synchronizer Diagnosis Procedure
