INFORMATION ON PRESSURE PLUG TAP CHANGE. Cadillac Concours 1994

For 1990-2009 cars

# INFORMATION ON PRESSURE PLUG TAP CHANGE

REVISION: 05/18/94

THIS BULLETIN IS BEING REVISED TO CHANGE FROM AN INFORMATION BULLETIN TO A SERVICE MANUAL UPDATE. ----------------------------------------------------------------------

#### SUBJECT: SERVICE MANUAL UPDATE - SECTION 7A - 4T80-E AUTOMATIC TRANSMISSION UNIT REPAIR

#### MODELS: 1994 CADILLAC ELDORADO, SEVILLE AND CONCOURS

TRANSAXLE APPLICATIONS: 1994 HYDRA-MATIC 4T80-E (RPO MH1)

STARTING MARCH 18, 1994 (JULIAN DATE 077) ALL HYDRA-MATIC 4T80-E TRANSAXLES WERE BUILT WITH A NEW PRESSURE PLUG TAP, WHICH HAS BEEN CHANGED FROM A 1/4 INCH TO 1/8 INCH.

(FIGURE 1)

A NEW KENT-MOORE TOOL FITTING ADAPTER IS RELEASED (J 21867-100). THE COMPLETE LINE PRESSURE FITTING KIT PACKAGE IS J 21867-94.

UPDATE YOUR 1994 SERVICE MANUAL WITH THE FOLLOWING PAGE.

FIGURES: 01

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.

COPYRIGHT 1994. GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.