ENGINE SURGE IN 1ST GEAR REVISED PROM

MODELS: 1987-88C/K,RNTRUCKSWITH5.7L(VINCODEK)ENGINEWITHMANUAL TRANSMISSION AND HEAVY DUTY EMISSIONS

Some 1987-88 CIKIRN trucks with 5.7L (VIN Code K) engine, manual transmission, and heavy-duty emissions may experience engine surge in 1st gear at low speeds. If the condition described cannot be repaired using normal service procedures, a revised calibration PROM should be installed.

New Broadcast New PROM Body Emission New PROM Code I.D. Style Series Type Kit No. (PROM Label) (Scan Tool) ----- ------ -------- -------- ------------- -----------

C/K/R/V 25/3500 *NA4 16125328 ANMW 6001

*NOTICE: THIS PROM TO BE USED ON NA4 (GVW 8600 LBS. AND ABOVE) VEHICLES ONLY.

Use Labor Op T7655 and Labor Time .8 hr.

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.