How to service the Air Inject Check Valve on GMC C3500?

To maintain the Air Injection Check Valve, first loosen the bolt holding the AIR crossover Bank 1 bracket in place, next, disconnect the AIR crossover hose from Bank 1, the AIR pump hose from the valve and the Bank 2 AIR pipe as well. Then, take out the AIR valve bracket bolt and take the valve out from its bracket. The bracket should be reattached to your ski using the AIR valve bolt. Start by hooking the Bank 2 AIR pipe, then the AIR pump output hose to the AIR valve and finally connect the AIR crossover Bank 1 hose. After that, attach the bolt to secure the AIR crossover Bank 1 hose bracket.

OEM GMC C3500 Air Inject Check Valve

Air Injection Reaction Check Valve

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5 Air Inject Check Valves found

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GMC C3500 Diverter Valve Part Number: 17087137
Product Specifications
- Other Name: Valve, Emission Control System (ECM Components); Secondary Air Injection Check Valve; By-Pass Valve; Emission Control System (ECM & EGR Components)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 GMC C3500 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
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GMC C3500 Check Valve Part Number: 12562568
Product Specifications
- Other Name: Valve Assembly-Secondary Air Injection Check; Secondary Air Injection Check Valve; Solenoid; Valve, Emission Control System
- Replaces: 22040897
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2000 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 7.4 L GAS
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GMC C3500 Check Valve Part Number: 17088072
Product Specifications
- Other Name: Valve, Emission Control System; Secondary Air Injection Check Valve; Diverter Valve; Valve, Emission Control System(EGR Control)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1989 GMC C3500 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 7.4 L GAS
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GMC C3500 Check Valve Part Number: 17062643
Product Specifications
- Other Name: Valve Air, Emission Control System; Secondary Air Injection Check Valve; Diverter Valve; Valve Assembly, Emission Control System(ECM Components); Valve, Emission Control System(EGR Valves)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 GMC C3500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS
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GMC C3500 Check Valve Part Number: 22050642
Product Specifications
- Other Name: Valve, Emission Control System; Secondary Air Injection Check Valve; Diverter Valve; Valve, Emission Control System (ECM, EGR Components, Valves)
- Replaces: 22099019
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1993 GMC C3500 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS

GMC C3500 Air Inject Check Valve

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GMC C3500 Air Inject Check Valve Parts and Q&A

Check Valve
12562568
Q: How to service the Air Inject Check Valve on GMC C3500?
A:
To maintain the Air Injection Check Valve, first loosen the bolt holding the AIR crossover Bank 1 bracket in place, next, disconnect the AIR crossover hose from Bank 1, the AIR pump hose from the valve and the Bank 2 AIR pipe as well. Then, take out the AIR valve bracket bolt and take the valve out from its bracket. The bracket should be reattached to your ski using the AIR valve bolt. Start by hooking the Bank 2 AIR pipe, then the AIR pump output hose to the AIR valve and finally connect the AIR crossover Bank 1 hose. After that, attach the bolt to secure the AIR crossover Bank 1 hose bracket.