NEW TCC SOL. SCREEN INSTALL TRANS.REPLACEMENT 440-T4

VEHICLES AFFECTED: All Vehicles Equipped With THM 440-T4 Transmissions

Beginning with the Julian dates listed in the chart below a new torque converter clutch solenoid screen, 'O' ring and valve body spacer plate assembly went into production on all model THM 440-T4 transmissions.

Transmissions built prior to these Julian dates have the past TCC Solenoid Screen which sits in a pocket in the channel plate and under the spacer plate. Transmissions built starting on these Julian dates have the new TCC solenoid screen and 'O' ring which snaps onto the new spacer plate assembly.

NOTICE: If replacement of the spacer plate is required the past TCC solenoid screen must be discarded and the new solenoid screen and 'O' ring must be installed. Refer to chart below for part numbers and model applications.

JULIAN SPACER TCC SOLENOID MODEL DATE PLATE SCREEN 'O' RING ----- ---- ----- ------ -------- AY 191 8658062 BA 192 8658072 BC 198 8658072 BS 224 8658494 ALL MODELS ALL MODELS BN 194 8658494 (8658060) (8658109) CW 192 8658354 OB 192 8658032 OY 192 8658070

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.