ENGINE SURGE IN 1ST GEAR REVISED PROM

VEHICLES AFFECTED: Cl C2 C3 Kl K2 K3 Rl R2 R3 Vl

Some 1987-88 C/K/R/V trucks with 5.7L engine, manual transmission, and heavy-duty emissions may experience engine surge in lst. 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 3900 KG or 8600 LBS. AND ABOVE) VEHICLES ONLY.

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.