DIESEL TCC ENGAGEMENT LOW SPEED INFORMATION

VEHICLES WITH 5.7L DIESEL ENGINES AND 350C TRANSMISSION (CODE WT-WX) MAY APPLY IN THIRD GEAR BETWEEN 25-30 MPH. THE APPLY SPEED ON THESE VEHICLES CAN BE INCREASED TO APPROXIMATELY 42 MPH BY REMOVING THE TAN COLORED GOVERNOR PRESSURE SWITCH AND REPLACING IT WITH A WHITE GOVERNOR PRESSURE SWITCH P/N 8633363.

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.