ELIMINATION OF THROTTLE VALVE SLEEVE - 700R4 AUTO. TRANS.

THM 700-R4 TRANSMISSIONS 1986 SERVICE MANUAL UPDATE FOR ELIMINATION OF THE THROTTLE VALVE SLEEVE

Model and Year: 1982-86 ALL MODELS WITH THM 700-R4 --------------

TO: ALL CHEVROLET DEALERS

Beginning on October 21, 1985, or Julian Date 294 (refer to Figure 1) all 1986 THM 700-R4 transmissions have been built with control valve assemblies that do not use a throttle valve sleeve (refer to item #327 in Figure 2) with the throttle valve (item #326). When servicing 1982 through 1985 model year transmissions this new assembly will be used as current service parts stock is depleted. In order to update the appropriate 1986 Service Manual revised illustrations (refer to Figures 3, 4 and 5) have been provided.

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.