For 1990-2009 cars

# CHUGGLE OR SURGE AND AN INTERMITTENT DTC 32

REVISION: 05/30/96

THIS BULLETIN IS BEING REVISED TO ADD THE 1996 MODEL YEAR AND TO UPDATE THE PARTS INFORMATION CHART. PLEASE DISCARD CORPORATE BULLETIN 57-65-17 (SECTION 6E - ENGINE FUEL AND EMISSION). ---------------------------------------------------------------------- SUBJECT: CHUGGLE OR SURGE AND AN INTERMITTENT DTC 32 (REFLASH CALIBRATION)

#### MODELS: 1994-96 BUICK ROADMASTER 1994-96 CHEVROLET CAPRICE, IMPALA SS 1994-96 CADILLAC FLEETWOOD WITH 5.7L ENGINE (VIN P - RPO LT1) AND 4L60-E AUTOMATIC TRANSMISSION

#### CONDITION:

SOME OWNERS MAY COMMENT ON A CHUGGLE OR A SURGE CONDITION BETWEEN 40 - 65 MPH (64-104 KMPH). ALSO SOME VEHICLES MAY SET AN INTERMITTENT DTC 32 (1994-95 VEHICLES ONLY).

#### CORRECTION:

INSTALL THE PROPER FLASH CALIBRATION LISTED FROM THE TABLE BELOW.

PARTS INFORMATION

NEW OLD ENGINE MODEL CALIBRATION CAL. AXLE TYPE YEAR NUMBER NUMBER TYPE APPLICATION EMISSIONS ______ _____ ___________ _________ ____ ___________ _________ 5.7L 1994 16230201 16207191 2.56 B/D BODY FED/CAL 5.7L 1994 16243931 16207141 2.56 PUB SERVICE GERMANY 5.7L 1994 16230211 16207201 2.93 B/D BODY FED/CAL 5.7L 1994 16230221 16207211 2.93 TRAILER TOW FED/CAL 5.7L 1994 16243011 16232021 3.08 IMPALA SS FED/CAL 5.7L 1994 16242991 16207151 3.08 POLICE FED/CAL 5.7L 1994 16243001 16207161 3.08 POLICE FED/CAL 5.7L 1994 16239501 16207131 3.42 B/D BODY FED/CAL

5.7L 1995 16230251 16209321 2.56 B/D BODY FED/CAL 5.7L 1995 16243941 16209371 2.56 PUB SERVICE FED/CAL 5.7L 1995 16243181 16230271 2.93 B/D BODY FED/CAL 5.7L 1995 16243171 16230261 2.93 TRAILER TOW FED/CAL 5.7L 1995 16243021 16209361 3.08 POLICE FED/CAL 5.7L 1995 16243031 16209381 3.08 POLICE FED/CAL 5.7L 1995 16243041 16232011 3.08 IMPALA SS FED/CAL 5.7L 1995 16239511 16209341 3.42 B/D BODY FED/CAL

5.7L 1996 16235331 16229991 2.56 B/D BODY FED/CAL 5.7L 1996 16243871 16229851 2.56 POLICE NO LEAD EXPORT 5.7L 1996 16243901 16230031 2.56 B/D BODY NO LEAD EXPORT 5.7L 1996 16235341 16229941 2.56 POLICE FED/CAL 5.7L 1996 16243861 16229841 2.93 TRAILER TOW NO LEAD EXPORT 5.7L 1996 16243891 16229961 2.93 B/D BODY NO LEAD EXPORT 5.7L 1996 16236651 16229931 2.93 B/D BODY FED/CAL 5.7L 1996 16235361 16229981 3.08 IMPALA SS FED/CAL 5.7L 1996 16243881 16229911 3.08 B/D BODY NO LEAD EXPORT 5.7L 1996 16243921 16231491 3.08 POLICE NO LEAD EXPORT 5.7L 1996 16242951 16229951 3.08 POLICE FED/CAL 5.7L 1996 16235351 16229921 2.93 TRAILER TOW FED/CAL 5.7L 1996 16242231 16230451 3.42 B/D BODY FED/CAL 5.7L 1996 16243911 16230461 3.42 B/D BODY NO LEAD EXPORT

WARRANTY INFORMATION FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION: J6355 LABOR TIME: USE PUBLISHED LABOR OPERATION TIME.

FIGURES: 0 ATTACHMENTS: 0

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 1996 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.