The following servo application applies in correcting conditions of slow resume response and speed loss on hills.
Servo Service Package Application:
25031535 - C-K truck with 6.2L diesel.
A. Perform normal service procedure as outlined in the service manual. If no condition is found, go to Step B.
B. Check manufacturing date code* on servo assembly. If it is date coded between the dates of 2132 (two hundred thirteenth day of year, 1982) and 0033 (third day of 1983), replace it with a unit manufactured either before or after the dates indicated.
C. Dealer Inventory of 25031452, 25030980,25031726, and 25031535, dated between 2132 and 0033, should be returned to the serving WDDGM warehouse for credit.
*Date code is stamped on servo cover.
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.