Revisions to this document are noted
by a stripe in the left-hand margin

SUBJECT:

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 1 of 17

Special Coverage for TIDB Aluminum Main Valve Body – Proactive

MODELS AFFECTED:

3000 Series™, 4000 Series™, B200™, B300™, B3400 xFE™, B400™, B500™,T200™,
T300™,T400™, T500™ Series Models

VOCATIONS AFFECTED:

All Vocations

Introduction:
Allison Transmission, Inc. has identified a potential concern with the TIDB Aluminum Main Valve Body. As a
Global Customer Satisfaction initiative, Allison Transmission, Inc. will support the proactive repair of units in fleets
with symptoms attributable to the subject part in the serial number ranges identified in Table 1. Vehicles with
in-service dates between January 1, 2018 and June 30, 2018 are eligible for this Field Action for thirty months
from their in-service date. Vehicles with in-service dates on or after July 1, 2018 are eligible for this Field Action
for twenty-four months from their in-service date. This Field Action does not cover transmission service work
unrelated to the symptoms described within.
NOTE: The purpose of this Field Action is to provide a proactive repair (prior to a failure occurring)
of the covered condition. Refer to the following instructions to identify affected transmissions, obtain
authorization to perform the repairs, and submit the proper warranty claims.
The following symptoms may be present with a suspect TIDB Main Valve Body:
• Harsh upshifts when C2 clutch is oncoming (6 speed: 3-4 upshift, 7 speed: 3-4 or 4-5 upshift)
• Premature P088A Transmission Filter Maintenance Alert, and/or P088B Transmission Filter Maintenance
Required DTCs
• Premature P2789 Transmission Clutch Life Expired (Clutch Adaptive Learning at Limit) DTC
• Premature TRANSHEALTH Transmission Health Monitor failure

MC / FA8625EN

4999934

Copyright © 2020 Allison Transmission, Inc. All Rights Reserved.

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 2 of 17
Table 1. Affected Serial Number Range, Models and Vocations
Global Customer
Satisfaction Initiative
TIDB Main Valve Body

Product Code

Affected Serial Number
(S/N) Range

Affected Transmission Models

Affected Vocations

Starts with S/N 651

6511516207 6511680891

3000 Series™, B200™, B300™,
B400™, T200™, T300™

All

Starts with S/N 651

6511516236 6511687928

3700

All

Starts with S/N 652

6520201013 6520222681

3000 Series™, B300™,
T200™, T300™

All

Starts with S/N 661

6610507871 6610578390

4000 Series™, B500™, T400™

All

Starts with S/N 661

6610507990 6610582232

4700/4800

All

Starts with S/N 662

6620030644 6620036700

4000 Series™, B500™, T500™

All

Starts with S/N 662

6620030654 Break TBD*

4700/4800

All

* Serial Number breakpoint not yet established.

NOTE: There are a small number of trial run transmissions within the affected serial number ranges
assembled with anodized TIDB main valve bodies in the factory. Those serial numbers are ineligible for
this Field Action. The Field Action Authorization Tool will not return an authorization number for those units.

NOTE: Anodize implementation dates for 6-speed and 7-speed models were not simultaneous. As a
result, eligible serial number ranges between those models differ.

Vehicle Configuration Category - Service Plan:
Determine classification of vehicle based upon Table 2.
Table 2. Vehicle Classification
Vehicle State

Classification

6-Speed - Upon Arrival - Prognostics Enabled

Category 1

6-Speed - Upon Arrival - Prognostics Disabled

Category 2

6-Speed - Upon Arrival - Prognostics Disabled then Enabled
at Customer Request

Category 1

7-Speed (no Filter Life Body Present)

Category 2

Category 1 Service Action:
Install anodized Main Valve Body, current configuration Main Regulator Valve, current configuration Filter Life
Indicator Spring, and reflash TCM to software level C191 or later if pre-C191 present. If C191 or later software level
is present, force Fast Adapt using Clear All Shift Adaptive Data command in Allison DOC® Action Request.
Copyright © 2020 Allison Transmission, Inc. All Rights Reserved.

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 3 of 17
NOTE: Some OEMs are on Flexible Release Timing (FRT) and, as a result, are held at a specific software
level. If the attempt to reflash the TCM to C191 or later software level is unsuccessful, FRT may be
applicable to the OEM. If this occurs, force Fast Adapt using Clear All Shift Adaptive Data command in
Allison DOC® Action Request.

Category 2 Service Action:
Install anodized Main Valve Body, current configuration Main Regulator Valve, and force Fast Adapt using Clear All
Shift Adaptive Data command in Allison DOC® Action Request.
NOTE: Prior to performing work, please read SILs 22-WT-19, 23-WT-19, and 27-WT-19 related to the
3000/4000 Series™ TIDB Aluminum Main Valve Body and Main Regulator Valve.

Field Action Transmission Identification:
Prior to the repair of a suspect transmission, verify that the Field Action repair has NOT already been performed.
Login to https://sap.allisontransmission.com/extranet/fieldactions. Enter the transmission serial number, vehicle
vocation code, and request an authorization. If you receive an authorization number, then this is confirmation that
the Field Action has NOT been performed. If the Field Action has NOT been performed, proceed with the repair.
Include the authorization number in the warranty claim narrative prior to submitting the claim. If you are unable
to obtain an authorization number, and you believe the transmission qualifies for the Field Action based on the
serial number range, contact the Allison Technical Assistance Center (TAC) at 1-800-252-5283 or 317-242-0700 or
E-mail: Allison[email protected].

Allison Service Outlet Field Action Responsibility:
When a Customer requests proactive service of vehicles in their fleet, the service outlet must first obtain fleet
approval. If fleet approval is obtained, the service outlet must then obtain a 2019FA08 Authorization Number for
each transmission serial number prior to performing the proactive Field Action service work. The service outlet
shall take the following steps to support the customer:
1. Compile a Fleet Profile of the customer’s fleet. Please use the Fleet Profile Template – 2019FA08 – Special
Coverage for TIDB Aluminum Main Valve Body – Proactive form to prepare the fleet profile. Login to
https://hub.allisontransmission.com/field-actions and use the hyperlink at the top of the page to download
a copy of the template. Closely read and follow the instructions on the first tab of the template before
entering data in the second tab of the template.
NOTE: Each Fleet Profile must be submitted electronically in an Excel spreadsheet, created using
the Allison Transmission approved template, with the file name convention specified in the template.
Non-conformance will result in automatic rejection of the submission.
2. Confirm all transmission serial numbers are within the Affected Serial Number range per Table 1.
3. Verify each vehicle’s in-service date.
• Vehicles with in-service dates on or between January 1, 2018 and June 30, 2018 are eligible for this
Field Action for thirty months from their in-service date.
• Vehicles with in-service dates on or after July 1, 2018 are eligible for this Field Action for twenty-four
months from their in-service date.

Copyright © 2020 Allison Transmission, Inc. All Rights Reserved.

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 4 of 17
4. Submit the completed Fleet Profile form to Allison[email protected] before proceeding with any
proactive repair. Authorization will not be granted until the Fleet Profile has been reviewed and approved.
After the Fleet Profile is approved, each pre-approved transmission serial number will then be added to the
2019FA08 Allison Field Action Authorization Tool. A unique authorization number will then be assigned (upon
request) to each pre-approved transmission serial number.
5. After fleet approval is obtained, prior to proceeding with service work, request a 2019FA08 Authorization
Number for each transmission serial number per the Field Action Transmission Identification section of this
document.
6. Before starting service:
• Verify the vehicle’s transmission serial number matches the serial number for the authorization
number issued
• Verify the transmission nameplate does not have the “X” Identification Mark indicating Field Action
service work has already been performed (refer to Figure 3)
7. For six-speed models, determine whether Prognostics are enabled or disabled.
• If, when keying-on the vehicle, the wrench indicator illuminates, Prognostics are enabled.
• Not all vehicles with Prognostics enabled will display the wrench icon at key-on. The icon is disabled at
key-on in some calibrations.
• Table 3 may be used to determine if Prognostics are enabled using the shift selector.
• Allison DOC® may also be used to determine if Prognostics are enabled.
Table 3. Shift Selector Function
Pushbutton Shift Selector – Press Up & Down Arrows Simultaneously
Bump Lever Shift Selector – Press Diagnostics Button (Allison Logo) Once
Button Press Count (Bold Indicates Prognostics Function)
3000/4000 Configuration

1

2

3

4

5

With Prognostics With Oil
Level Sensor

Fluid Level

Oil Life

Filter Life

Trans Health

Diagnostics

With Prognostics Without Oil
Level Sensor

Oil Life

Filter Life

Trans Health

Diagnostics

Without Prognostics With Oil
Level Sensor

Fluid Level

Diagnostics

Without Prognostics Without
Oil Level Sensor

Diagnostics

• Verify the required service parts shown in Table 4, Table 5, Table 6, Table 7, Table 8, or Table 9 are in
inventory to support the service work.
• Use Table 4 to support a Product Code 65 3000 Series™ 6-speed unit in a Category 1 vehicle
• Use Table 5 to support a Product Code 65 3000 Series™ 6-speed unit in a Category 2 vehicle
• Use Table 6 to support a Product Code 65 3000 Series™ 7-speed unit in a Category 2 vehicle
• Use Table 7 to support a Product Code 66 4000 Series™ 6-speed unit in a Category 1 vehicle
• Use Table 8 to support a Product Code 66 4000 Series™ 6-speed unit in a Category 2 vehicle
• Use Table 9 to support a Product Code 66 4000 Series™ 7-speed unit in a Category 2 vehicle
Copyright © 2020 Allison Transmission, Inc. All Rights Reserved.

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 5 of 17
8. Replace parts listed in Table 4, Table 5, Table 6, Table 7, Table 8, or Table 9 per the Service Manual SM4013
or SM4014 Control Module Overhaul procedures.
NOTE: Prior to re-using the PS1 Switch Assembly or PS2 Switch Assembly, closely inspect the O-ring of
each switch for damage. If either O-ring is questionable, replace the part.

NOTE: Closely inspect the Main Regualtor Valve P/N 29563501 for the presence of a manufacturing burr
shown in Figure 1 and Figure 2 below. See SIL 01–WT-20 for additional clarification.

Figure 1.

Copyright © 2020 Allison Transmission, Inc. All Rights Reserved.

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 6 of 17

Figure 2.
9. In vehicles with six-speed transmissions and Prognostics enabled (Category 1), if the software level is prior
to C191, reflash the TCM to C191 or later software level. If C191 or later software level is present, force Fast
Adapt using Clear All Shift Adaptive Data command in Allison DOC® Action Request.
10. In vehicles with six-speed transmissions classified as Category 2, or in vehicles with seven-speed
transmissions (Category 2), use the Allison DOC® Action Request command Clear All Shift Adaptive Data
to force Fast Adapted shifts. There is no need to reflash the TCM to C191 or later software level in these
vehicles.
NOTE: The Clear All Shift Adaptive Data Action Request forces the TCM to use the Fast Adaptive
algorithm to adapt shifts.
11. Fill transmission with the same type of fluid that was drained. Reset Fluid Life Monitor as-required.
12. Stamp or etch an “X” identification mark into the transmission nameplate in the location shown in Figure 3.

Copyright © 2020 Allison Transmission, Inc. All Rights Reserved.

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 7 of 17

Figure 3. Identification Mark
13. File AWAARE claim per Table 10, Table 12, Table 13, Table 14, Table 15, or Table 16.

Required Service Parts:
The following tables provide the required service parts for this Global Customer Satisfaction Field Action 2019FA08
initiative.

Copyright © 2020 Allison Transmission, Inc. All Rights Reserved.

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 8 of 17
Table 4. Product Code 65 – 3000 Series™, B200™, B300™, B400™, T200™, T300™ Series – Category 1
Mandatory/AsRequired

Part Number

Part Name

Quantity

Mandatory

23019664

Drain Plug O-ring

1

Mandatory

23046376

Seal, Face

3

Mandatory

29503283

Gasket, Case

1

Mandatory

29503382

O-ring, 14.0 mm ID

1

Mandatory

29503384

O-ring, 18.8 mm ID

1

Mandatory

29507437

Filter Cover O-ring

2

Mandatory

29512863

O-ring, Standoff, 47.2 mm ID

1

Mandatory

29524449

Filter Cover Gasket

2

Mandatory

29535518

O-ring, 13.0 mm ID

6

Mandatory

29537066

Gasket, Suction Filter

1

Mandatory

29542976

O-ring, 10.5 mm ID

6

Mandatory

29542991

Seal, Face

1

Mandatory

29548953

Filter Cover O-ring

2

As-Required

29549658

Switch Assembly, Pressure
(PS2)

1

As-Required

29552364

Switch Assembly, Pressure
(PS1)

1

Mandatory

29557154

Body, Main Control Valve

1

Mandatory

29557345

Gasket, Channel Plate

1

Mandatory

29562588

FLI Spring

1

Mandatory

29563501

Valve, Main Regulator

1

Copyright © 2020 Allison Transmission, Inc. All Rights Reserved.

2019FA08, Rev. A
January 28, 2020
Product Code(s): 65, 66
Page 9 of 17
Table 5. Product Code 65 – 3000 Series™, B200™, B300™, B400™, T200™, T300™ Series – Category 2
Mandatory/AsRequired

Part Number

Part Name

Quantity

Mandatory

23019664

Drain Plug O-ring

1

Mandatory

23046376

Seal, Face

3

Mandatory

29503283