Subject: Clutch Pedal Clatter Models: 911 Carrera 1987-1989
Bulletin Number: 89 – 04
911 Carrera from Model Year 1987 up to Model Year 1989, Production Date February 1989
To repair clutch pedal clatter (noise that goes away when depressing clutch pedal slightly), a modified clutch slave cylinder should be installed.
New slave cylinder PN 9188.8.131.52
The new type slave cylinder can be identified by the extended rubber boot (arrow in figure) and a spring installed inside the boot.
Important Notice: Technical Bulletins are intended for use by professional technicians, not a “Do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle, or to provide information that could assist in the proper service of a vehicle. Special tools may be required to perform certain operations identified in these bulletins. Use of tools and procedures other than those recommended in these bulletins may be detrimental to the safe operation of your vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your Porsche Dealer for information on whether your vehicle may benefit from the information. Part numbers listed in these bulletins are for reference only. Always check with your authorized Porsche dealer to verify correct part numbers.
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