How to replace the secondary air inject check valve on 2004 Chevrolet Trailblazer?

In order to replace the secondary air injection (AIR) solenoid valve pull out the air cleaner outduct, disconnect the electrical connector and air outlet pipe, and remove the transmission fluid level indicator tube. Take out the AIR solenoid valve and gasket and put the new items in and re-connect all the pieces.

OEM 2004 Chevrolet Trailblazer Air Inject Check Valve

Air Injection Reaction Check Valve

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2004 Chevrolet Trailblazer Check Valve Part Number: 12619128
$109.90 MSRP: $223.23
You Save: $113.33 (51%)
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Product Specifications
- Other Name: Valve, Emission Control System; Secondary Air Injection Check Valve; Diverter Valve
- Replaces: 12575655
- Item Weight: 2.30 Pounds
- Item Dimensions: 6.3 x 6.1 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12619128
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Trailblazer Submodels:
- LS, LT, North Face | 6 Cyl 4.2 L GAS

2004 Chevrolet Trailblazer Air Inject Check Valve

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2004 Chevrolet Trailblazer Air Inject Check Valve Parts and Q&A

Q: How to replace the secondary air inject check valve on 2004 Chevrolet Trailblazer?
A: In order to replace the secondary air injection (AIR) solenoid valve pull out the air cleaner outduct, disconnect the electrical connector and air outlet pipe, and remove the transmission fluid level indicator tube. Take out the AIR solenoid valve and gasket and put the new items in and re-connect all the pieces.