CODE 45 AT ALTITUDE ABOVE 5000 FEET

Model and Year: 1988 CAPRICE CLASSIC, MONTE CARLO, EL CAMINO WITH 5.OL, LG4/L69 ENGINE

Comments have been received of Code 45 occurring in carbureted 1988 vehicles at elevations above 5000 feet. If the Code 45 Chart in the Service Manual has been used and the resulting diagnosis indicates an intermittent or no trouble found, the service technician should refer to the Carburetor Calibration portion of Section "6E1-C2".

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.