How to replace the A/C Orifice Tube in an A/C system on Chevrolet Blazer?

The first step to replace an A/C Orifice Tube requires refrigerant recovery from the system followed by evaporator tube removal from the evaporator. Discard the o-ring seal during this process. The orifice tube remover and installer (J 26549-E) should be used to remove the A/C Orifice Tube. The installer and remover tool (J 26549-E) helps extract the A/C Orifice Tube. Users must first clean all blocked materials then direct a heat gun (hair dryer, epoxy dryer, or equivalent) at the inlet dimples with a 7 mm (0.25 in) distance while being cautious to maintain pipe temperature within safe levels and avoiding pressure switches nearby. When heating the A/C Orifice Tube you must use the orifice tube remover and installer (J 26549-E) for both pushing and turning motions to remove it. When installing the new A/C Orifice Tube use the orifice tube remover and installer (J 26549-E) which should have its shorter screen end inserted first into the evaporator. Take 525 viscosity refrigerant oil to coat the new o-ring seal before installing both the new o-ring and the evaporator tube to the evaporator. Tighten the evaporator tube to 28 n.m (21 lb ft). The customer must evacuate and recharge the a/c system before conducting a leak test on fittings through the use of the halogen leak detector (J 39400-A).

OEM Chevrolet Blazer A/C Orifice Tube

A/C Hose

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4 A/C Orifice Tubes found

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Chevrolet Blazer Evaporator Core Connector Part Number: 3033879
$9.91 MSRP: $17.69
You Save: $7.78 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Orifice, A/C Evaporator Tube; A/C Evaporator Core Repair Kit; A/C Accumulator Tube Outlet; A/C Orifice Tube; A/C Line Screen; Tube; Strainer; Inlet Orifice; A/C Expansion Refrigerant; Gasket, A/C Evaporator
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-2005 Chevrolet Blazer | Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Filter Part Number: 3096068
$7.12 MSRP: $12.38
You Save: $5.26 (43%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Orifice, A/C Condenser; A/C Orifice Tube; Orifice; Orifice, A/C Expansion Refrigerant; Orifice, A/C Evaporator
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer Dehydrator Part Number: 84473270
$77.97 MSRP: $160.24
You Save: $82.27 (52%)
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Product Specifications
- Other Name: Receiver & Dehydrato, Air Conditioner Refrigerant; Drier Desiccant Element; A/C Receiver Drier; A/C Accumulator; Drier; Receiver & Dehydrato, A/C Refrigerant
- Replaced by: 86515463
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | Base, L, LT, Premier, RS | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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Chevrolet Blazer Drier Dessicant Bag Part Number: 84377853
$105.00 MSRP: $215.75
You Save: $110.75 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Receiver & Dehydrato, Air Conditioner Refrigerant; Drier Desiccant Element; A/C Receiver Drier; A/C Accumulator; Dehydrator; Drier; Receiver & Dehydrato, A/C Refrigerant
- Replaced by: 42858352
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2022-2024 Chevrolet Blazer | LT, Premier, RS | 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L GAS

Chevrolet Blazer A/C Orifice Tube

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Chevrolet Blazer A/C Orifice Tube Parts and Q&A

Evaporator Core Connector
3033879
Q: How to replace the A/C Orifice Tube in an A/C system on Chevrolet Blazer?
A:
The first step to replace an A/C Orifice Tube requires refrigerant recovery from the system followed by evaporator tube removal from the evaporator. Discard the o-ring seal during this process. The orifice tube remover and installer (J 26549-E) should be used to remove the A/C Orifice Tube. The installer and remover tool (J 26549-E) helps extract the A/C Orifice Tube. Users must first clean all blocked materials then direct a heat gun (hair dryer, epoxy dryer, or equivalent) at the inlet dimples with a 7 mm (0.25 in) distance while being cautious to maintain pipe temperature within safe levels and avoiding pressure switches nearby. When heating the A/C Orifice Tube you must use the orifice tube remover and installer (J 26549-E) for both pushing and turning motions to remove it. When installing the new A/C Orifice Tube use the orifice tube remover and installer (J 26549-E) which should have its shorter screen end inserted first into the evaporator. Take 525 viscosity refrigerant oil to coat the new o-ring seal before installing both the new o-ring and the evaporator tube to the evaporator. Tighten the evaporator tube to 28 n.m (21 lb ft). The customer must evacuate and recharge the a/c system before conducting a leak test on fittings through the use of the halogen leak detector (J 39400-A).