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NHTSA ID Number: 10205595
Manufacturer Communication Number: 21NA279
Summary
This service bulletin provides a procedure to replace the starter if found the cause of the rattle noise.
25 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| BUICK | ENVISION | 2021-2022 |
| CADILLAC | CT4 | 2020-2022 |
| CADILLAC | CT5 | 2020-2022 |
| CADILLAC | XT4 | 2019-2022 |
| CADILLAC | XT5 | 2020-2022 |
| CADILLAC | XT6 | 2020-2022 |
| CHEVROLET | BLAZER | 2019-2022 |
| GMC | ACADIA | 2020-2022 |
Condition
Some customers may comment that a rattle type noise can be heard coming from the engine/transmission area or from the front of vehicle when the engine is running or the vehicle is in motion and making turns.
Cause
The cause of this condition may be that the starter pinion gear may be loose and making contact with the flywheel.
Correction
Note: To duplicate this noise, drive the vehicle at low speed and make right hand turns. The rattle develops from the starter drive gear sliding down the starter motor shaft and contacting the ring gear.
Inspect and, if necessary, replace the starter.
⇒ If you are able to duplicate the noise, remove the starter motor per the SI procedure and inspect the drive pinion gear. Hold the starter level and tip the nose down. If the gear slides down the motor shaft, replace the starter.
Service Procedure
Refer to Starter Replacement in SI.
SEOCONTENT-START
Service Bulletin Bulletin No.: 21-NA-279
Date: December, 2021
TECHNICAL
Subject: Rattle Type Noise Heard Coming from Engine/Transmission Area or from Front of
Vehicle When Engine is Running or Vehicle is in Motion and Making Turns
Brand: Model:
Model Year: VIN:
Engine: Transmission:
from to from to
Buick Envision 2021
2022 — —
2.0L
Turbo (LSY) —
Cadillac
CT4 2020
CT5 2020
XT4 2019
XT5 2020
XT6 2020
Chevrolet Blazer 2019
GMC Acadia 2020
Involved Region or Country United States, Canada, Europe, Russia, Middle East, Israel, Palestine, Chile, Colombia,
Peru, Japan, Cadillac Korea (South Korea)
Condition
Some customers may comment that a rattle type noise can be heard coming from the
engine/transmission area or from the front of vehicle when the engine is running or the
vehicle is in motion and making turns.
Cause The cause of this condition may be that the starter pinion gear may be loose and making
contact with the flywheel.
Correction
Note: To duplicate this noise, drive the vehicle at low speed and make right hand turns.
The rattle develops from the starter drive gear sliding down the starter motor shaft and
contacting the ring gear.
Inspect and, if necessary, replace the starter.
⇒ If you are able to duplicate the noise, remove the starter motor per the SI
procedure and inspect the drive pinion gear. Hold the starter level and tip the
nose down. If the gear slides down the motor shaft, replace the starter.
Service Procedure
Refer to Starter Replacement in SI.
Parts Information
Use the VIN and refer to the GM Electronic Parts
Catalog (EPC) to determine the proper part to order.
Causal
Part
Description Part
Number
Qty
N/A STARTER, ENG Refer
to EPC
1
Page 2 December, 2021 Bulletin No.: 21-NA-279
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation
Description Labor Time
4041250
Starter Replacement Use
Published
Labor
Operation
Time
Version 1
Modified Released November 29, 2021
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-279
Date: December, 2021
https://www.nhtsa.gov/recalls?nhtsaId=10205595
MC-10205595-9999.pdf 504.006KB
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![A-Premium High Torque Starter Motor [3HP|12V|2.5KW|9Teeth|OSGR|CW] Fit for GM Race Car, Small Block Chevy (SBC) 327 350 383, Big Block Chevy (BBC) 396 454 502, Replace for # 18493 410-44033](https://m.media-amazon.com/images/I/41A7dmZxFEL._SL160_.jpg)
- [Vehicle Fitment]: Compatible with GM Race Car, Such As: Small Block Chevy (SBC) 327 350 383 or Big Block Chevy (BBC) 396 454 502 Engine with 153 or 168 tooth flywheels
- [Reference Number]: 104010, 18493, 22202HI, 41044033, 46835, 572633, 600000, 91251201N, SHI0032
- [Package Contents]: 1x High Torque Starter Motor & & Shim Kit; Packaging Type: Box
- [Specifications]: ① Power Rating: 2.5KW; ② Volts: 12V; ③ Number of Teeth: 9; ④ Rotation: CW (Clockwise); ⑤ Starter Type: OSGR
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- Replacement Part Numbers: 10465606, SDR0272, 9000895, 8000193, 6932, 6788N, 6788, 410-12451, 41012451, 410-12163R, 41012163R, 410-12163, 41012163, 3862308, 3858463, 323-1619, 3231619, 1650426, 1469603
- Condition: New; Unit Type: PMGR; Unit Series: PG260L Series; Voltage: 12V; kW: 1.6; Rotation: CW; Tooth Count: 11; Mounting Hardware Included: No; Unit Finish: Same as OE; Number of Pieces: 1; Country of Origin: CN
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- Engineered to meet or exceed Original Equipment Manufacturer (OEM) specifications
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- OE Numbers: 12655055, 12663672, 12667173 - Valeo Tech Code: FS1832
- Brand New - Manufactured with New Premium Quality Components
- Engineered to Meet or Exceed OEM Specifications
- Compatible With Chevrolet Silverado 1500 LT, WT 4.3L 2014-16; Silverado 1500 LS 4.3L 2015-16; Silverado 1500 LT, LTZ 5.3L 2014; Compatible With GMC Sierra 1500 SLE, SLT 5.3L 2014; Yukon XL Denali 6.2L 2015-16 - See the Description for more Applications
- One Year Hassle Free Guarantee
- See Product Description for Additional Specifications
- 100% newly manufactured as an exact replacement for your GM vehicle's original starter
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
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- Rareelectrical Brand Compatible with DELCO, GM, MAN, MERCRUISER, MERCURY, OMC, VOLVO, VOLVO PENTA, YAMAHA
- Replaces: API MARINE: 10099, DELCO: 9000821, MERCURY: 50-806964A3 50-806964A4, OMC: 3855177, VOLVO PENTA: 3854751-9, WILL ALSO REPLACE THESE OLDER STYLE 10MT DELCO STARTERS, MERCURY: 50-12121A2 50-12177A2 50-712428A3 50-812604A2 50-99418A2, OMC: 984456 986505 3850525 3853982 3855177, THIS MARINE BOAT STARTER FITS NEARLY ALL MERCRUISER, COBRA, YAMAHA, VOLVA ...
- Replaces: VOLVA PENTA, AND OMC GM ENGINES EXCEPT THE 3.0 LITER.THIS PERMANENT MAGNET HIGH TORQUE GEAR REDUCTION STARTER WILL ALSO REPLACE THE OLDER LARGE STYLE 10MT DELCO STARTERS WITH STAGGERED (OFFSET) BOLT PATTERN! IT PROVIDES HIGHER TORQUE WITH LESS DRAIN ON YOUR BATTERY. THIS STARTER HAS AN 11 TOOTH PINION THAT WILL REPLACE THE OLDER STYLE 9 TOOTH MODELS., FITS MERC, OMC, ...
- Replaces: V6 & V8 ENGINES- GM BLOCK USING A 14.5 INCH FLYWHEEL., ITEM DESCRIPTION: STARTER, UNIT TYPE: DELCO, TYPE: PMGR, VOLTAGE: 12, POWER: 1.7 KW, ROTATION: CLOCKWISE, TOOTH COUNT: 11, GEAR OD: 29.5MM / 1.161IN, DE HOUSING NUMBER: 371-12182, MOUNTING EAR 1: 10.0MM ID UNTHREADED, MOUNTING EAR 2: 10.0MM ID UNTHREADED, WEIGHT: 9.435 LBS / 4.29 KG and many more...
- Starter - Voltage: 12V Rotation: Clockwise Teeth On Drive / Splines: 11 Source: Aftermarket
- NEW units are manufactured under the guidelines of ISO Quality Standards to ensure consistent quality
- All components are 100% NEW to provide improved performance
- Engineering enhancements to internal components provide the latest, most efficient unit for your vehicle.Nose Cone Material: Aluminum
- Key components are greased to ensure long term reliability in harsh conditions
- All dimensions, key mounting surfaces, and contact points are gauged and measured to ensure proper fit. Case Grounding: Grounded Case
- Replacement Part Numbers: 12578050, 12578051, 12588651, 12592294, 12604477, 12610300, 41012257, 410-12257, 6494, 6494N, 6494R, 8000045, 8000150, 8000288, 88861935, 88878289, 8890174400, 8-89017-440-0, 89017440, 89017631, 89018123, 9000939, SDR0270, 12568051
- Condition: Remanufactured in the USA; Unit Series: PG260 Series; Voltage: 12V; kW: 1.1; Rotation: CW; Tooth Count: 9; Mounting Hardware Included: No; Unit Finish: Same as OE; Number of Pieces: 1; Country of Origin: US
- Compatible With Chevrolet Silverado 1500 Base, LS, LT 5.3L 2003-05; Suburban 1500 LS, LT 5.3L 2003-05; Tahoe LS, LT 5.3L 2003-05; Tahoe LTZ 5.3L 2007-08 - See the Description for more Applications
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Last update on 2024-06-14 / Affiliate links / Images from Amazon Product Advertising API
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