NHTSA ID Number: 10163219
Manufacturer Communication Number: 17NA293
Summary
This technical bulletin provides a procedure to replace the AC distributor case if the rear air blows warm when the AC is selected.
2 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
BUICK | ENVISION | 2016-2017 |
Condition
One or more of the following concerns from the 2nd row / rear HVAC:
- Temperature doesn’t change when commanded
- A/C inoperative
- Blowing warm air when the A/C is selected
- Blowing cold air when heat is selected
Cause
This condition may be caused by the auxiliary temperature valve, internal to the A/C distributor case, being fractured.
Parts
| Description | Part Number | Qty |
| CASE, A/C EVPR & BLO | 84213709 | 1 |
| SEAL KIT, HTR & A/C EVPR & BLO MDL | Refer to EPC | 1 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 17-NA-293
Date: June, 2019
MC-10163219-9999.pdf 339.581KB
NHTSA ID Number: 10134584
Manufacturer Communication Number: 17NA293
Summary
This technical bulletin provides a procedure to replace the AC distributor case if the rear air blows warm when the AC is selected.
1 Associated Document
Manufacturer Communications
Bulletin No.: 17-NA-293
Date: October, 2017
MC-10134584-9999.pdf 955.667KB
NHTSA ID Number: 10159609
Manufacturer Communication Number: 17NA293
Summary
This technical bulletin provides a procedure to replace the AC distributor case if the rear air blows warm when the AC is selected.
1 Associated Document
Manufacturer Communications
Bulletin No.: 17-NA-293
Date: September, 2017
MC-10159609-9999.pdf 277.616KB
NHTSA ID Number: 10137754
Manufacturer Communication Number: PIT5581
Summary
This preliminary information advises the technician to inspect for a broken temperature door versus replacing the temperature actuator and resulting in a misdiagnosis.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5581
Published date: 08/31/2017
- 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.
SEOCONTENT-START
Service Bulletin Bulletin No.: 17-NA-293
Date: June, 2019
TECHNICAL
Subject: Rear Air Conditioning Inoperative, Rear Air Temperature Doesn’t Change When
Commanded
This Bulletin replaces PIT5581. Please discard PIT5581.
Brand: Model:
Model Year: VIN: Engine: Transmission:
from to from to
Buick Envision 2016 2017 SOP July
20, 2017
Involved Region or Country North America
Additional Options (RPOs) Equipped with HVAC SYSTEM-AIR CONDITIONING, FRT & RR ELECTRONIC
CONTROLS (CJ4)
Condition
Some customers may comment on one or more of the following concerns from the 2nd row / rear HVAC:
• Temperature doesn’t change when commanded
• A/C inoperative
• Blowing warm air when the A/C is selected
• Blowing cold air when heat is selected
Cause
4861180
This condition may be caused by the auxiliary temperature valve, internal to the A/C distributor case, being fractured.
Page 2 June, 2019 Bulletin No.: 17-NA-293
Correction
4861172
Note: The technician may find the pivot for the temperature valve has pulled away from the actuator motor (2).
Verify if the temperature valve is working properly:
• If it has been validated that the rear temperature valve is not working properly, replace the A/C distributor case.
• If the temperature valve has been found to be working correctly, refer to SI for further diagnostics.
Bulletin No.: 17-NA-293 June, 2019 Page 3
Service Procedure
5361052
Important: Wiring harness length has the potential for the Upper DAT (1) and EAT (2) connectors to plug into the wrong sensor. To avoid miswiring the replacement case, you should mark each of the temperature sensor wires and note their location prior to removal. Confirm that the Purple/Black wire connector (3) goes to the Upper DAT, and the Gray/Black wire connector (4) goes to the EAT.
Replace the A/C distributor case. Refer to Air Distributor Case Replacement in SI.
Page 4 June, 2019 Bulletin No.: 17-NA-293
Parts Information
Causal
Part
Description Part
Number
Qty
x CASE, A/C EVPR
& BLO
84213709 1
N/A SEAL KIT, HTR &
A/C EVPR &
BLO MDL
Refer
to EPC
1
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation
Description Labor Time
4412280 Air Distributor Case
Replacement
Use
Published
Labor
Operation
Time
Version 6
Modified Revised September 29, 2017 – Added the 2016 Model Year and supersede statement.
Revised October 27, 2017 – Added the Important statement to the Correction section.
Revised July 10, 2018 – Add seal kit to Parts Information section.
Revised December 05, 2018 – Update Conditions section to add cold air information and
temp control.
Revised June 21, 2019 – Added Important and Graphic to Service Procedure.
SEOCONTENT-END
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