INFORMATION ON TIMING CONNECTOR LOCATION CHANGE. GMC Truck GMC Suburban

SUBJECT: INFORMATION ON TIMING CONNECTOR LOCATION CHANGE

MODELS: 1994 CHEVROLET AND GMC C/K TRUCKS WITH GASOLINE ENGINES

THE TIMING CONNECTOR, WHICH CAN BE DISCONNECTED TO RETURN ENGINE TIMING TO BASE FOR ADJUSTMENT PURPOSES, HAS BEEN MOVED FROM THE ENGINE COMPARTMENT TO INSIDE THE CAB. THIS NEW LOCATION IS NOT CURRENTLY REFLECTED IN THE SERVICE OR OWNER'S MANUAL.

THE NEW LOCATION IS UNDER THE DASH DIRECTLY BELOW THE GLOVE COMPARTMENT. THE TAN/BLACK WIRE IS ROUTED FOR A SHORT DISTANCE OUTSIDE OF A LARGE WIRING HARNESS. THIS LARGE HARNESS IS ROUTED BETWEEN THE HEATER BLOWER MOTOR AND EVAPORATOR CASE. THE TIMING CONNECTOR IS TAPED TO THE WIRE BUNDLE (FIGURE 1).

FIGURES: 1

CAPTIONS: FIGURE1 - RH SIDE OF I/P, TIMING CONNECTOR TAPED TO HARNESS

Object Number: 84125 Size: FS

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.