Document ID# 538154
1997 Pontiac Bonneville


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VEHICLE SURGE(REPLACE CONTROL VALVE BODY ASSEMBLY) #87-71-75 - (Oct 28, 199
SUBJECT: VEHICLE SURGE (REPLACE CONTROL VALVE BODY ASSEMBLY)

MODELS: 1997 BUICK LESABRE 1997 OLDSMOBILE EIGHTY-EIGHT 1997 PONTIAC BONNEVILLE WITH 3.8L ENGINE (VIN K - RPO L36) AND HYDRA-MATIC 4T60-E TRANSAXLE/TRANSMISSION (RPO M13)

CONDITION: (SEE FIGURE 1) SOME OWNERS MAY COMMENT ON THE VEHICLE SURGING AT 72 TO 89 KM/H (45 TO 55 MPH) WITH TCC APPLIED UNDER A SLIGHT LOAD. TO VERIFY THE ABOVE CONDITION, PERFORM THE FOLLOWING TEST: DUPLICATE THE CONDITION AND NOTE THE TCC SLIP ON THE TECH II. THE SLIP WILL RANGE BETWEEN 50-150 RPM. NEXT, COMMAND THE TCC ON WITH THE TECH II. THE DUTY CYCLE SHOULD READ 99% AND THE VEHICLE SURGING CONDITION SHOULD NO LONGER BE EVIDENT. IF THE ABOVE TWO (2) PARAMETERS ARE MET, PROCEED WITH THE CORRECTION LISTED BELOW.

CAUSE:

A MAJORITY OF CAUSES FOR THE CONDITION MAY BE DUE TO AN OVERSIZE CONDITION IN THE TCC REGULATOR VALVE LINE-UP.

CORRECTION: (SEE FIGURE 2) TO REPAIR THIS CONDITION, REPLACE THE CONTROL VALVE BODY ASSEMBLY. THIS ASSEMBLY WILL INCLUDE A TCC REGULATOR VALVE LINE-UP THAT IS NOT OVERSIZED.

TO REPLACE THE CONTROL VALVE BODY ASSEMBLY, REFER TO SECTION 7 OF THE SERVICE MANUAL.

SERVICE PARTS INFORMATION:

TRANSMISSION PART NUMBERS MODEL DESCRIPTION ------------ ------------- ----------- 24212569 7ACW OR 7BXW CONTROL VALVE BODY ASSEMBLY 24212571 7ASW CONTROL VALVE BODY ASSEMBLY

PARTS ARE EXPECTED TO BE AVAILABLE OCTOBER 19, 1998.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR CODE: K6570 LABOR TIME: 3.5 HOURS

FIGURES: 02 ATTACHMENTS: 00


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 1998 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.



GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these 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 your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION


© Copyright General Motors Corporation. All Rights Reserved.


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Document ID# 538154
1997 Pontiac Bonneville

Figure 1


Figure 2


Enjoy!

[Sean Connery voice] You're the man now, dog! [End Sean Connery voice]

How did you manage to find that?

More importantly, does this information jive with the heat-related symptoms? Is this a part that would theoretically be more troublesome in high heat conditions?

Thought 97 had the 4T65-E?

GM tech 12 years...from his intro

as did i???

I think that was just the supercharged that had the 4t65-e. This bulletin ONLY applies to NON-supercharged Bonnevilles with the 4t60-e.

supercharged has 65hd, not 65e I thought

4t60-e for L36 and 4t65-e for L67........No such thing as a 4t65hd

oh ya, there'* a 65e and a 65e-hd