How to replace the evaporator core in the HVAC module assembly on Chevrolet Trailblazer?

The evaporator core replacement process starts with evacuating the HVAC module assembly before unscrewing the assembly halves while accounting for screws that lie beneath the foam insulation. The HVAC module assembly needs separation before removing the evaporator core from its location and extracting the seal between the halves of the HVAC module assembly. Perform the following replacement steps starting with the positioning of the seal within the HVAC module assembly halves and adding refrigerant oil to the evaporator core during its installation when core replacement occurs. After oil addition check the refrigerant system capacities for correct oil amounts. The evaporator core installation into the HVAC module assembly should be followed by the reassembly of the module while the seal must maintain a proper position between the two case sections. The HVAC module assembly halves need to be joined through screw installation at 1.9 N.m (17 lb in) torque and then complete HVAC module assembly installation.

OEM Chevrolet Trailblazer Evaporator

A/C Evaporator Core

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6 Evaporators found

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Chevrolet Trailblazer Evaporator Core Part Number: 42834283
$106.77 MSRP: $190.67
You Save: $83.90 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Evaporator Kit-A/C; Evaporator Kit, A/C Evaporator
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2024 Chevrolet Trailblazer | ACTIV, LS, LT, RS | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
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Chevrolet Trailblazer Evaporator Core Part Number: 42752021
$115.32 MSRP: $206.86
You Save: $91.54 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Evaporator Kit-A/C; A/C Evaporator Core Repair Kit; A/C Evaporator; Evaporator Kit, A/C Evaporator
- Replaces: 42747631
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 Chevrolet Trailblazer | ACTIV, L, LS, LT, RS | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
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Chevrolet Trailblazer Evaporator Core Part Number: 89019026
Product Specifications
- Other Name: Evaporator Kit, Air Conditioner Evaporator; A/C Evaporator Core Repair Kit; A/C Evaporator Core; A/C Evaporator; Evaporator Kit, A/C Evaporator; Evaporator
- Replaces: 52498635
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2009 Chevrolet Trailblazer | Base, LS, LT, LTZ, North Face, SS | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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Chevrolet Trailblazer Evaporator Core Part Number: 88892977
Product Specifications
- Other Name: A/C Evaporator Core Repair Kit; A/C Evaporator
- Replaced by: 89023466
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 Chevrolet Trailblazer | LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS
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Chevrolet Trailblazer Evaporator Core Part Number: 89023466
Product Specifications
- Other Name: A/C Evaporator Core Repair Kit; A/C Evaporator Core; A/C Evaporator; Evaporator Kit, A/C Evaporator; Evaporator
- Replaces: 88892977, 89023341
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2007 Chevrolet Trailblazer | LS, LT, LTZ, North Face, SS | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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Chevrolet Trailblazer Evaporator Core Part Number: 52495720
Product Specifications
- Other Name: Evaporator Kit, Air Conditioner Evaporator; A/C Evaporator Core Repair Kit; A/C Evaporator; Evaporator Kit, A/C Evaporator
- Replaces: 52487350
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Trailblazer | LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS

Chevrolet Trailblazer Evaporator

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The Evaporator in Chevrolet Trailblazer cars is of immense importance within the A/C system as it assists in cooling the air inside the car when the air-conditioning system is operational; that being after converting liquid refrigerant into its gaseous state. Fitted under the dash, it again is a metal core made of aluminium tubes with fins to transfer heat from the warm air to the refrigerant. Moreover the evaporator it has a dehumidifying function as the air to be cooled passes through it in order to expel moisture content. Because of the frequent problems such as leakage resulting from age, fluctuation in temperatures, or dirt build-up, one of the most vital parts in ensuring a comfortable cabin ride is the A/C Evaporator.

Chevrolet Trailblazer Evaporator Parts Questions & Experts Answers

Evaporator Core
89019026
Q: How to replace the evaporator core in the HVAC module assembly on Chevrolet Trailblazer?
A:
The evaporator core replacement process starts with evacuating the HVAC module assembly before unscrewing the assembly halves while accounting for screws that lie beneath the foam insulation. The HVAC module assembly needs separation before removing the evaporator core from its location and extracting the seal between the halves of the HVAC module assembly. Perform the following replacement steps starting with the positioning of the seal within the HVAC module assembly halves and adding refrigerant oil to the evaporator core during its installation when core replacement occurs. After oil addition check the refrigerant system capacities for correct oil amounts. The evaporator core installation into the HVAC module assembly should be followed by the reassembly of the module while the seal must maintain a proper position between the two case sections. The HVAC module assembly halves need to be joined through screw installation at 1.9 N.m (17 lb in) torque and then complete HVAC module assembly installation.