Bulletin No.: PIP5175D
Published date: 06/8/2020

Preliminary Information
PIP5175D Slip Or Shudder During A Launch In First Second Third
Or Fourth Gears Delayed Engagement Into Drive Clunk Or Bump
During The 1-2 Shift
Models
Brand:

Model:

Model
Years:

VIN:
from to

Engine:

Transmissions:

2013 2016

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

Chevrolet Avalanche

2013

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

Chevrolet Caprice PPV

2013 2017

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

Chevrolet Silverado

2013 2018

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

2019

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

Chevrolet Silverado

2020

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

Chevrolet SS

2014 2017

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

Chevrolet Suburban

2013 2020

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

Chevrolet Tahoe

2013 2020

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

GMC

Sierra

2013 2018

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

GMC

Sierra New
Model

2019

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

GMC

Sierra

2020

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

GMC

Yukon Models

2013 2020

All

All All

6L80 MYC Automatic Transmission Built in the
Silao Mexico Plant 2

Cadillac

Chevrolet

Escalade

Silverado New
Model

Note: Please refer to SI document 2610129. The following information only applies to
transmissions with a source code (item number 7 in document 2610129) of (2).

Supersession Statement:
This PI was superseded to add model years. Please discard PIP5175C.

Condition / Concern
Customers may comment on a delayed engagement into drive, shudder at a launch, or
the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears.
The customer may also comment that they feel a bump or hear a clunk noise during a 1-2
shift.

These concerns may only be present when the transmission is at operating temperature.

Recommendations / Instructions
These concerns may be due to loose stator support to pump cover bolts causing a leak at the
stator support to pump cover gasket.
If the root cause cannot be found following normal SI diagnostics, remove the transmission
fluid pan and the transmission control assemblies.
Referring to the picture below and wearing proper eye protection apply compressed air to
the 1-2-3-4 clutch apply passage and inspect for air leaking out of the compensator feed
passage in the pump cover.
If no leakage is found out of the compensator feed passage listen for excessive air leakage
inside the transmission.

Callout 1
Component Name: Applying compressed air to the 1234 clutch passage.

Callout 2
Component Name: Compensator feed passage.
You may also notice fluid leaking or see a misaligned gasket by looking up through the case
opening between the pump stator support and the 1234/35R clutch housing during this test
as shown below.

Callout 2
Component Name: Gap between the pump cover and the 1234/35R clutch housing.
If excessive air leakage is found inspect the transmission fluid pump for loose stator support
to pump cover bolts or a misaligned stator support to pump cover gasket.
Note: The bolts should never be checked for being loose by using a hand tool. The bolts are
supposed to be torqued at the factory and never loosened. The recommended procedure to
check for loose bolts is to use your fingers or just a socket and your fingers and attempt to
rotate the bolts in a counter clockwise direction. If the bolts are loose for any reason the
pump cover must be replaced.
Refer to the picture below.

Callout 1
Component Name: Misaligned Gasket

Callout 2
Component Name: Stator Support Bolts

If any of the bolts are loose or the gasket is misaligned or leaking, the transmission pump
cover must be replaced and the 1234 clutch plates should be inspected for being distressed
and repaired as needed.
Note: The transmission adapts must be reset if the pump cover is replaced to address this
concern.

Parts Information
Part Number

Description

QTY

24248573

COVER KIT,A/TRNS FLUID PUMP

1

24224147
24258080

PLATE ASM-1-2-3-4 CLU
PLATE,1-2-3-4 CLU(STEEL)

6
5

Warranty Information
For vehicles repaired under the Powertrain coverage, use the following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH) for coverage information.
Labor Operation
Description
8465050 (Use if no concerns are
found with the stator support bolts
Oil Pump Replacement
or cover).
8466410 (Use if the stator support
bolts are loose or the gasket is
1-2-3-4 Clutch Plate Replacement
misaligned)

Labor Time
Use Published Labor Operation Time

Use Published Labor Operation Time

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is
resolved without completing every step, the remaining steps do not need to be performed.

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