For 1990-2009 cars

# LATE UPSHIFT/325 TRANSMISSION DIAGNOSIS INFORMATION

BEGINNING EARLY SEPTEMBER, 1981, ALL 1982 THM 325-4L T.V. LEVER AND BRACKET ASSEMBLIES WERE BUILT WITH A NEW DESIGN PIN. SEE FIGURE 1. IF THE PAST DESIGN PIN CONTACTS THE VALVE BODY IT COULD CAUSE THE T.V. LEVER AND BRACKET TO BIND, RESULTING IN HIGHER LINE PRESSURE AND LATE UPSHIFTS. IF REMOVAL OF A PAST DESIGN T.V. LEVER AND BRACKET IS NECESSARY, DUE TO PIN INTERFERENCE, REPLACE IT WITH PART NUMBER 8635549.

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.