Fix for 1997 Tranny surge at highway speed - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-12-2005, 03:41 PM   #1
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Default Fix for 1997 Tranny surge at highway speed

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.


--------------------------------------------------------------------------------
Document ID# 538154
1997 Pontiac Bonneville

Figure 1


Figure 2


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Old 08-12-2005, 04:09 PM   #2
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[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?
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Old 08-12-2005, 04:13 PM   #3
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Thought 97 had the 4T65-E?
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Old 08-12-2005, 05:02 PM   #4
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Quote:
Originally Posted by big_news_1
[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?
GM tech 12 years...from his intro
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Old 08-12-2005, 05:32 PM   #5
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Quote:
Originally Posted by jwikoff99
Thought 97 had the 4T65-E?
as did i???
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Old 08-12-2005, 05:58 PM   #6
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Quote:
Originally Posted by 1993 SLE
Quote:
Originally Posted by jwikoff99
Thought 97 had the 4T65-E?
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.
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Old 08-12-2005, 06:04 PM   #7
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supercharged has 65hd, not 65e I thought
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Old 08-12-2005, 06:12 PM   #8
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4t60-e for L36 and 4t65-e for L67........No such thing as a 4t65hd
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Old 08-12-2005, 06:22 PM   #9
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oh ya, there'* a 65e and a 65e-hd
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Old 08-12-2005, 06:48 PM   #10
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MN3 4T65-E

MN7 4T65-E HD

M15 I believe the MN3 and M15 have a diffrent converter size or possibly used for AWD?

M13 4T60-E

ME9 THM440-T4 / 4T60


1997 was a strange year... All of the NA'd Bonnies had the 4T60-E and all of the SC'd Bonnies used the 4T65-E...

In 98 the bonneville dropped the 60-E for the 65-E...

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