Please see T-SB-0052-22
Introduction:
Some 2021 – 2022 model year Tacoma vehicles may exhibit a condition in which the air conditioning system has poor cooling performance sometimes accompanied by refrigerant vapor visible from under the vehicle. This condition is caused by the pressure relief valve opening and purging refrigerant at a pressure below specification. Follow the Repair Procedure in this bulletin to address this condition.
Warranty Information:
R & R the Pressure Relief Valve
Repair Procedure:
1. Does the vehicle exhibit a condition in which the air conditioning system has poor cooling performance sometimes accompanied by refrigerant vapor visible from under the vehicle?
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
2. Is there evidence of leak detection dye at the pressure relief valve on the compressor?
YES — Continue to step 3.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual
3. Recover the refrigerant from the air conditioning system.
4. Was the amount of refrigerant recovered less than the amount indicated below?
For vehicles with engine type 2TR-FE: 480 g.
For vehicles with engine type 2GR-FKS: 495 g.
YES — Continue to step 5.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
5. Remove the compressor from the vehicle.
6. Remove the pressure relief valve and O-ring.
7. Install the NEW pressure relief valve and O-ring.
A. Apply sufficient compressor oil (PSD1 or equivalent) to a NEW O-ring and fitting surface of the pressure relief valve.
B. Install the NEW O-ring onto the pressure relief valve.
C. Install the pressure relief valve
8. Reinstall the compressor onto the vehicle.
9. Charge the air conditioning system with refrigerant.
10. Warm the engine at 1,640 RPM or less for two minutes or more AFTER charging the air conditioning system with refrigerant.
11. Inspect the air conditioning system for refrigerant leak using a gas leak detector or UV light.
12. Confirm the air conditioning system is cooling consistently.
Introduction:
Some 2021 – 2022 model year Tacoma vehicles may exhibit a condition in which the air conditioning system has poor cooling performance sometimes accompanied by refrigerant vapor visible from under the vehicle. This condition is caused by the pressure relief valve opening and purging refrigerant at a pressure below specification. Follow the Repair Procedure in this bulletin to address this condition.
Warranty Information:
R & R the Pressure Relief Valve
Repair Procedure:
1. Does the vehicle exhibit a condition in which the air conditioning system has poor cooling performance sometimes accompanied by refrigerant vapor visible from under the vehicle?
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
2. Is there evidence of leak detection dye at the pressure relief valve on the compressor?
YES — Continue to step 3.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual
3. Recover the refrigerant from the air conditioning system.
4. Was the amount of refrigerant recovered less than the amount indicated below?
For vehicles with engine type 2TR-FE: 480 g.
For vehicles with engine type 2GR-FKS: 495 g.
YES — Continue to step 5.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
5. Remove the compressor from the vehicle.
6. Remove the pressure relief valve and O-ring.
7. Install the NEW pressure relief valve and O-ring.
A. Apply sufficient compressor oil (PSD1 or equivalent) to a NEW O-ring and fitting surface of the pressure relief valve.
B. Install the NEW O-ring onto the pressure relief valve.
C. Install the pressure relief valve
8. Reinstall the compressor onto the vehicle.
9. Charge the air conditioning system with refrigerant.
10. Warm the engine at 1,640 RPM or less for two minutes or more AFTER charging the air conditioning system with refrigerant.
11. Inspect the air conditioning system for refrigerant leak using a gas leak detector or UV light.
12. Confirm the air conditioning system is cooling consistently.