NHTSA ID Number: 10226381
Manufacturer Communication Number: PIP5887
This Preliminary information communicates the possibility of a normal balance shaft gear whine noise to exist in the engine and is normally most audible at or above 1500rpm. This noise does not create any reliabilty or durability issues with the engine.
Whine noise heard from engine area most noticeable oﬀ idle
Normal Balance Shaft gear noise
You may encounter a vehicle that has a audible whine noise between 1000-2500rpm coming from under the hood area both hot and cold.
This noise could be mistaken for a generator bearing noise or turbocharger noise.
If you experience this type of noise use a stethoscope to see if the noise can be isolated to the lower oil pan area or transmission bell housing area.
If so, this noise is likely being generated by the balance shaft gear to gear interaction and should be considered normal operation at this time.
This noise will not cause any durability or reliability issues with the engine.
14 Affected Products
1 Associated Document
Bulletin No.: PIP5887
Published date: 10/18/2022
- CEL Doctor: The ANCEL AD310 is one of the best-selling OBD II scanners on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the check engine light coming on, quickly read and clear diagnostic trouble codes, read live data & hard memory data, view freeze frame, I/M monitor readiness and collect vehicle information. Instead of taking car to mechanic shop, you can use it to check the trouble code and show code definition by yourself.
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- Multi-Functions - Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed.
- Wide Capability - Supports 9 protocols compatible with most 1996 US-Based, 2000 EU-Based and Asian cars, and newer OBD II & CAN domestic or import vehicles. Supports 6 languages - English,German, Dutch, Spanish, French, Italian.
- LCD Display - Designed with a clear display LCD screen (128 x 64 pixels) - white backlight and contrast adjustment. No need any battery or charger, OBD reader gets the power directly from your vehicle through the OBDII Data Link Connector.
- Compact Design - Car diagnostic scanner is equipped with a 2.5 feet long cable and made of a very thick flexible insulator.There are 6 buttons on OBD2 Scanner:scroll up/down,enter/exit and buttons that quick query VIN vehicle number& the DTC fault code.
- ABS / Airbag codes NOT Supported - It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.
- 🆚LAUNCH X431 PRO5 scan tool Upgrade all functions of X431 PRO3/X-431 Throttle III/X431-TorqueIII/X431 V+, PROS V+, PAD3. ⓵ J2534 ECU Programming &Online functions directly connect to OEM server, 50+ reset same as X-431 Throttle;⓶Bi-directional control and All system diagnostics as Snap-on scanner; ⓷ Support 150+ brands Vehicles (include CAN/CAFD/DoIP/HD protocols and AutoAuth for FCA SGW) ⓸Powered by 8-core processor(1.8GHz), Android9.0 OS, 2.4 & 5GHz WiFi connection.
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- 👍【2023 New OE Level Online Functions 】Bidirectional Scan Tool offers you various high-end online functions, which enable you to access the online data to do fast & complicated vehicle repairs, e.g. 1) ECU Coding for replacing, match, relearn, recode new ECU modules; 2) Online Coding for BMW, Audi, VW, Porsche, Benz to surf OEM data; 3) VAG Guided functions ease complex issues; 4) Personalization & ADAS improving car performance and driving safety.
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- 【Smog Check Helper】Read/Erase and I/M readiness hotkeys make it easy to use the car computer reader right out of the package. Red-Yellow-Green Leds and build-in speaker indicate the readiness status for confident e-missions test.
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- 👍【A-ctive Test + Local-smith Level ECU Coding】Come with appealing bi-directional control to troubleshoot all possible problems for full systems within 5 minutes. This LAUNCH X431 PRO scanner even develops all practical functions needed by all technicians: 1) ECU Coding for replacing, match, relearn, recode new ECU modules; 2) Online Coding for B-MW, VW, Porsche, Ben-z to surf OEM data; 3) VAG Guided functions ease complex issues; 4) Personalization & ADAS improving car performance and driving safety.
- 👍【All System Diagnostics for 99% Vehicle Coverage] Serve for 150+ American, Asian, European brands, and cover 99% of vehicle models worldwide. This LAUNCH diagnostic scan tool can operate complete full-function diagnostics to all on-board systems to troubleshoot and repair all vehicle problems, including Engine, Transmission, Airbag, ABS, ESP, TPMS, Immobilizer, Gateway, Steering, Radio, Air Conditioning, etc.
- Please contact us (7/24 service) before purchasing to confirm that Thinkdiag2 can perform this function on your vehicle. This OBD2 scanner the only diagnostic scanner in this price range that supports the CAN-FD protocol that is compatible with the latest GM vehicles manufactured after 2020, which can run faster than other products to greatly enhance the user experience. Unlock the protected FCA vehicle SGW module on Chrysler, Dodge, Jeep, Alfa Romeo, and Fiat vehicles manufactured after 2019.
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- A Bi-directional control diagnostic tool that supports actuation tests, drives solenoids and actuators for active testing, sending commands to the system/component to test its operating status without using the vehicle controls, making it easy to operate and saving a lot of time to identify the cause of the fault. In addition, it supports ECU CODING which allows you to match replacement components to the ECU. It also can activate the hidden functions for some BMW, VW, AUDI, and BENZ models.
- Thinkdiag2 OBDII code scanner is designed for individual car owners, DIYers, and small repair shops, which has a separate menu of 15 common special functions, such as Oil reset, EPB reset, SAS calibration, ABS bleeding, injector code, IMMO matching, TPMS reset, etc. Enter from the all-system diagnostic menu to unlock more system special functions, and effectively handle the reset and relearn of most cars. Note: The Maintenance functions that each car can do may be different.
- The 2022 newest diagnostic scanner has an Auto-VIN function, it can help car owner/repair stores automatically and quickly identify the year of manufacture, model, and VIN of most models, then enter the vehicle diagnostic menu. Then you can click 'Health Report' for a complete vehicle system scan, which will automatically generate a detailed vehicle health report after diagnosis. Reports and diagnostic records can be viewed in the REPORT and HISTORY menu, and reports can be shared and printed.
- 🔔【Easy to Use--Work out of box】+【FOXWELL 2023 New Version】 FOXWELL NT604 Elite scan tool is the 2023 new version from FOXWELL, which is designed for those car owners who want to figure out the cause issue before fixing the car problem via scanning the most common systems like abs srs engine and transmission.The NT604 Elite diagnostic tool comes with latest software, which can be used out of box. No need to waste time to download the software first.
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Last update on 2023-03-06 / Affiliate links / Images from Amazon Product Advertising API
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Bulletin No.: PIP5887 Published date: 10/18/2022 Preliminary Information PIP5887 Diagnostic Tip: Whine Noise Heard From Engine Area Most Noticeable Off Idle Proactive Models Brand: Cadillac Chevrolet GMC Model: CT4-V Silverado Sierra Model Years: 2022 – 2023 2022 – 2023 2022 – 2023 VIN: from to All All All All All All Engine: 2.7 L3B 2.7 L3B 2.7 L3B All All All Transmissions: Involved Region or Country: North America Condition: Cause: Correction Whine noise heard from engine area most noticeable oﬀ idle Normal Balance Shaft gear noise You may encounter a vehicle that has a audible whine noise between 1000-2500rpm coming from under the hood area both hot and cold. This noise could be mistaken for a generator bearing noise or turbocharger noise. If you experience this type of noise use a stethoscope to see if the noise can be isolated to the lower oil pan area or transmission bell housing area. If so, this noise is likely being generated by the balance shaft gear to gear interaction and should be considered normal operation at this time. This noise will not cause any durability or reliability issues with the engine and is currently being investigated further by GM Engineering. This PI will become a bulletin once additional information has been collected. Version History Version 1 Modified 10/17/2022 – Created. © 2022 General Motors. All Rights Reserved.