TRANSAXLE ERRATIC &/OR NO SHIFTS, STUCK IN 3RD GEAR. Pontiac Grand Prix 1998

REVISION: 02/26/98

THIS BULLETIN IS BEING REVISED TO ADD ADDITIONAL REPAIR CODES. PLEASE DISCARD CORPORATE BULLETIN NUMBER 73-71-06 (SECTION 7 - TRANSMISSION). ______________________________________________________________________

SUBJECT: TRANSAXLE ERRATIC AND/OR NO SHIFTS, STUCK IN 3RD GEAR, MIL ON (REPAIR WIRE(S) UNDER AIR CLEANER)

MODELS: 1998 PONTIAC GRAND PRIX - BUILT PRIOR TO VIN BREAKPOINT WF249884 WITH HYDRA-MATIC 4T65E TRANSAXLE (RPOS MN7, M15) AND 3.8L ENGINE (VINS K, 1 - RPOS L36, L67)

CONDITION:

SOME OWNERS MAY COMMENT ON ONE OR MORE OF THE FOLLOWING CONDITIONS:

O TRANSAXLE ERRATIC AND/OR NO SHIFTS O NO POWER WHEN ACCELERATING O STUCK IN 3RD GEAR AND/OR TORQUE CONVERTOR CLUTCH (TCC) FUSE BLOWS O INTERMITTENT MIL/SERVICE ENGINE SOON INDICATOR ILLUMINATED

CAUSE:

WIRES TO THE TORQUE CONVERTER CLUTCH (TCC) SWITCH MAY CHAFE AGAINST A REINFORCEMENT RIB ON THE TRANSAXLE'S SIDE COVER AND THE BOTTOM OF THE AIR CLEANER ASSEMBLY. DAMAGE TO THE HARNESS MAY RESULT IN STORED DIAGNOSTIC TROUBLE CODES OF P0711, P0712, P0713, P0716, P0717, P0741, P0748, P0753, P0758, PI810, PI860 AND/OR OPEN FUSE IN THE TCC CIRCUIT. THIS CONDITION MAY CAUSE ONE OR MORE SHIFTING CONCERNS OR STUCK IN THIRD GEAR.

CORRECTION:

INSPECT AND REPAIR ANY DAMAGED WIRES AND INSTALL P-CLIP TO RE-ROUTE WIRING HARNESS.

PROCEDURE -

1. REMOVE THE AIR CLEANER ASSEMBLY AND AIR DUCT FOLLOWING THE PROCEDURE IN SECTION 6 OF THE SERVICE MANUAL.

2. INSPECT AND REPAIR ANY DAMAGED WIRES. REFER TO SECTION 8A OF THE SERVICE MANUAL FOR WIRE REPAIR INFORMATION. WRAP THE REPAIRED WIRES WITH FRICTION TAPE, AND INSTALL A PIECE OF PLASTIC WIRE HARNESS PROTECTOR/CONDUIT OVER THE REPAIRED AREA. WRAP THE PROTECTOR/CONDUIT WITH FRICTION TAPE TO PROTECT IT FROM FUTURE DAMAGE.

3. INSTALL HARNESS TO P-CLIP APPROXIMATELY 90MM (4 IN.) FROM THE TCC BREAKOUT AND ATTACH P-CLIP TO TRANSAXLE STUD (FIGURE 1) WITH THE PLASTIC CLIP FACING OUTBOARD AND TIGHTEN NUT TO 25 N.M (18 LB FT).

4. REPOSITION THE REPAIRED HARNESS TO PROVIDE THE NECESSARY CLEARANCE TO INSTALL THE AIR DUCT AND CLEANER ASSEMBLY FOLLOWING THE PROCEDURE IN SECTION 6 OF THE SERVICE MANUAL.

PARTS INFORMATION:

P/N DESCRIPTION --- -----------

12084232 CLIP, HARNESS 11514596 NUT

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION LABOR OPERATION NUMBER DESCRIPTION TIME ---------------- ----------- ---------------

N6045 AUTOMATIC TRANSAXLE USE PUBLISHED LABOR (ENGINE COMPARTMENT) OPERATION TIME

FIGURES: 01 ATTACHMENTS: 00

FIGURE 1 1. POSSIBLE WIRE DAMAGE AREA 2. P-CLIP INSTALLED

Object Number: 335506 Size: SH

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