For 1990-2009 cars

# DAMAGE TO CLUTCH SLAVE CYL. WRONG DISCONNECT PROCEDURE

#### VEHICLES AFFECTED: 1984-85 Vehicles Equipped With Hydraulic Clutch Control Systems

Section 7C of the shop manual relates to servicing manual transmission clutch systems. The hydraulic clutch system presently used on 1984 'F' Series and to be released for 1985 'J' Series usage requires that the master cylinder rod be disconnected from the clutch pedal to prevent damage to the slave cylinder when repairs are required to the clutch system. Please strictly adhere to the important notice shown below:

#### NOTICE: Prior to any vehicle service that requires removal of the slave cylinder (i.e. transmission and clutch housing removal), the MASTER cylinder push rod must be disconnected from the clutch pedal. If not disconnected, permanent damage to the slave cylinder will occur if the clutch pedal is depressed while the slave cylinder is disconnected.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a 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 a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.