NHTSA ID Number: 10222800
Manufacturer Communication Number: 22-NA-154
Summary
This informational bulletin is for Korea to see normal operation of A/C compressor.
Condition
Some customers may comment on the following:
- A/C compressor may intermittently exhibit higher than usual levels of noise and vibration
- Occasionally a booming sound may be heard between 1500 to 2000 engine
RPM
Cause
The A/C compressor working load increases during high ambient temperatures and full A/C load conditions needed to cool the vehicle interior. Under these conditions, it is normal for compressor noise levels to increase.
Correction
If A/C system performance test and pressures are correct, the compressor noise is a normal condition of the system. Many A/C compressors replaced under warranty and returned are NTF (No Trouble Found). Compressor replacement will not improve the noise level.
4 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| CHEVROLET | COLORADO | 2019-2022 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 22-NA-154
Date: August, 2022
MC-10222800-0001.pdf 491.898KB
- R134a Replacement - Hydrocarbon blend that is 100% natural, safe for the ozone and non global warming. Chemically compatible with R134a systems.
- 6oz (11.7 fl oz) Cans - Compressed gas is measured by weight. This gas is light weight compared to others, but has the same "volume". Guaranteed that you will use no more than normal!
- SSV Cans - Self Sealing Valve allows for the storage of unused gas. Requires SSV compatible tool. Avoid "piercing" style tools or the gas may come out slowly or not at all.
- Disclosures - Product is flammable like many other modern refrigerants. Observe all precautions on the product lablel when handling and storing. Follow all legal requirements when charging your system. Hydrocarbon blend refrigerant for NON MVAC use in 6oz SSV Cans.
- REGULATED FOR LEGAL SAFETY: Approved for use in R134a systems only, in compliance with EPA regulations. It ensures proper functionality without the risk of mixing refrigerant types, providing peace of mind and legal safety
- HVAC Guys AC Refrigerant R134a Replacement - Eco-Friendly, 100% Natural Hydrocarbon Gas - R-134a Replacement for use in a 6-ounce self-sealing container
- Compatible with 1/2" ACME Self-Sealing Can Tap
- R134a Replacement - Hydrocarbon blend that is 100% natural, safe for the ozone and non global warming. Chemically compatible with R134a systems.
- 6oz (11.7 fl oz) Cans - Compressed gas is measured by weight. This gas is light weight compared to others, but has the same "volume". Guaranteed that you will use no more than normal!
- SSV Cans - Self Sealing Valve allows for the storage of unused gas. Requires SSV compatible tool. Avoid "piercing" style tools or the gas may come out slowly or not at all.
- Disclosures - Product is flammable like many other modern refrigerants. Observe all precautions on the product lablel when handling and storing. Follow all legal requirements when charging your system. Hydrocarbon blend refrigerant for NON MVAC use in 6oz SSV Cans.
- GREEN REFRIGERATION SOLUTION: ZeroR AC Refrigerant is a 100% natural hydrocarbon gas, offering a more eco-friendly alternative to traditional AC recharge like R134a. It helps reduce environmental impact while providing reliable cooling performance
- R134A READY INSTALLATION: Designed to fit R134a systems, ZeroR AC Refrigerant installs just like any standard refrigerant. The cans feature R134a-compatible threads, ensuring easy and seamless installation with your existing R 134a refrigerant can taps
- SMALLER CAN BIGGER IMPACT: Each can of our car AC refrigerant holds 6oz of refrigerant, but its performance is equivalent to 16oz of R134a. This makes it a highly efficient and cost-effective option, requiring less product while maintaining excellent performance
- BUILT FOR SAFE USAGE: ZeroR AC Car Refrigerant is rated with a class 2.1 rating, similar to newer refrigerants like R1234YF. When used in systems designed for refrigerants, it’s safe and poses no danger to users under normal operating conditions
- REGULATED FOR LEGAL SAFETY: ZeroR AC Recharge Can is approved for use in R134a systems only, in compliance with EPA regulations. It ensures proper functionality without the risk of mixing refrigerant types, providing peace of mind and legal safety
- High Quality Material: This car AC refrigerant charge hose is crafted with high-strength aluminum material, which strong pressure resistance and corrosion resistance, not prone to deformation, extending the service life of the hose. Meanwhile, aluminum material has good thermal conductivity, which helps to quickly balance the temperature of the hose and the environment during filling, reducing pressure fluctuations caused by temperature differences and improving filling accuracy.
- Widely Application: This product measures of 15.4 inches total length with 0.51 inches diameter low side quick coupler and 1/2 inches dispensing valve. This kit can be used for automotive air conditioning systems with R134a, R12, or R22 standard interfaces. Suitable for most vehicles such as sedans, SUVs, trucks, vans, etc. Note: Not compatible with 2018 cvic, tuscson.
- Simple Installation: This car AC refrigerant charge hose is designed to be easy-to-install. First, connect the self-sealing dispensing valve to the refrigerant can. Then, connect the low-pressure side quick connector to the interface of the R134a automotive air conditioning system. Finally, open the low-pressure valve, slowly add refrigerant, and observe the pressure gauge reading.
- Practical Functions: This kit equipped with a pressure gauge, it can monitor the pressure of the air conditioning system in real time, determine whether there are any abnormalities, assist in troubleshooting, and also achieve quantitative charging through the control valve to avoid overcharging or undercharging. While the high-precision threads processed using CNC cutting technology provide better sealing when used with R134a valves.
- Complete Package: This product package contains a pair of R134a refrigerant recharge hose with gauge, one side is R134a low side quick coupler, another is 1/2 dispensing valve. This kit features a user-friendly design that allows you to release the refrigerant tank with one hand, without needing to use both hands. The extended hose allows you to easily reach deep into the engine compartment, making it the ideal choice for quickly replacing aging valve cores.
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Copyright 2022 General Motors LLC. All Rights Reserved. Service Bulletin Bulletin No.: 22-NA-154 Date: August, 2022 INFORMATION Subject: A/C Compressor Normal Noise and Vibration Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet Colorado 2019 2022 Involved Region or Country North America and Korea Additional Options (RPOs) Equipped with RPO LGZ Condition Some customers may comment on the following: • A/C compressor may intermittently exhibit higher than usual levels of noise and vibration • Occasionally a booming sound may be heard between 1500 to 2000 engine RPM Cause The A/C compressor working load increases during high ambient temperatures and full A/ C load conditions needed to cool the vehicle interior. Under these conditions, it is normal for compressor noise levels to increase. Correction If A/C system performance test and pressures are correct, the compressor noise is a normal condition of the system. Many A/C compressors replaced under warranty and returned are NTF (No Trouble Found). Compressor replacement will not improve the noise level. Important: Service agents must comply with all International, Federal, State, Provincial, and/or Local laws applicable to the activities it performs under this bulletin, including but not limited to handling, deploying, preparing, classifying, packaging, marking, labeling, and shipping dangerous goods. In the event of a conflict between the procedures set forth in this bulletin and the laws that apply to your dealership, you must follow those applicable laws. Version 2 Modified Released August 02, 2022 Revised September 01, 2022 — Added North America to Regions. 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
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