How do you remove the Heater Core on Chevrolet Trailblazer?

To remove the air conditioning system, start by discharging it and disconnecting the battery cable at the negative terminal. Then, drain the cooling system and remove the heater hoses and air conditioning lines from the fittings at the firewall, making sure to plug the lines to prevent coolant spillage and contamination. Next, remove the instrument panel assembly and the instrument panel carrier and heater/air conditioning assembly. Separate the HVAC module from the instrument panel carrier and then remove the screws to separate the HVAC module halves and carefully remove the heater core. For installation, simply reverse the removal steps and refill the cooling system. Finally, have the air conditioning system charged by a professional and check for proper operation by starting the engine.

Genuine Chevrolet Trailblazer Heater Core

HVAC Heater Core

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4 Heater Cores found

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Chevrolet Trailblazer Core Assembly, Htr
Part Number: 42677734
$54.66 MSRP: $98.04
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Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer Core,Heater
Part Number: 52498633
Product Specifications
- Other Name: CORE, Heater Core; Heater Core
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Core Kit,Heater (Auxiliary)
Part Number: 89023339
Product Specifications
- Other Name: CORE, Heater Core; Auxiliary Heater Core, Heater Core
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2006 Chevrolet Trailblazer | 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
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Chevrolet Trailblazer Core Asm,Heater
Part Number: 52495721
Product Specifications
- Other Name: CORE, Heater Core; Heater Core
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L

Chevrolet Trailblazer Heater Core

The Heating Cores in the Chevrolet Trailblazer are part of the climate control system, and it acts as a conventional radiator where the Heater Core takes the extra heat generated in the engine to demystify the interiors. Manufactured from aluminum or brass, the core has fins for a greater surface exposure to be cooled by a water and antifreeze mix, operating at the engine's temperature. In this case, the vehicle's fan directs air over the core to warm the cabin air. Some systems utilize valves or doors when it comes to regulation of temperature, and some have additional features that comprise of dual climate for comfort. In vehicles with air conditioning systems, a heater core is used to warm the air that has been cooled by evaporator coils improving dehumidification. Problems range from blockage, cracking, and rusting, repairs touching on the dashboard, are usually complicated.

Each OEM Chevrolet Trailblazer Heater Core we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Trailblazer Heater Core Parts Questions & Experts Answers

Core,Heater
52498633
Q: How do you remove the Heater Core on Chevrolet Trailblazer?
A: To remove the air conditioning system, start by discharging it and disconnecting the battery cable at the negative terminal. Then, drain the cooling system and remove the heater hoses and air conditioning lines from the fittings at the firewall, making sure to plug the lines to prevent coolant spillage and contamination. Next, remove the instrument panel assembly and the instrument panel carrier and heater/air conditioning assembly. Separate the HVAC module from the instrument panel carrier and then remove the screws to separate the HVAC module halves and carefully remove the heater core. For installation, simply reverse the removal steps and refill the cooling system. Finally, have the air conditioning system charged by a professional and check for proper operation by starting the engine.