How to replace the Secondary Air Injection Check Valve/Pipe on Bank 1 on GMC Yukon XL 1500?

The first step for replacing the bank 1 Secondary Air Injection Check Valve/pipe involves removing its clamp then disconnecting the Air Hose. The replacement process begins by six steps. The technician must first remove the check valve from the left air pipe before taking out the air pipe from the Exhaust Manifold. The check valve replacement requires a valve operation inspection through a Vacuum Pump connection to the check valve nipple (AIR pump side) with 10 inches hg pressure and 5-second vacuum decay observation for decision-making. The check valve installation requires the attachment to the air pipe with 23 n.m (17 lb ft) torque followed by the air pipe hook-up to the Exhaust Manifold using 20 n.m (15 lb ft) torque. Last step involves attaching the hose from the check valve and tightening it with the provided clamp.

OEM GMC Secondary Air Injection Check Valve

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10 Secondary Air Injection Check Valves found

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GMC Check Valve Part Number: 12639108
$223.11 MSRP: $453.16
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Product Specifications
- Other Name: Valve Assembly-Secondary Air Injection Check; Secondary Air Injection Check Valve; Diverter Valve; Valve, Emission Control System
Fits the following GMC Models:
- Terrain | 2013-2015 | Denali, SL, SLE, SLT | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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GMC Check Valve Part Number: 12623091
$161.32 MSRP: $327.66
You Save: $166.34 (51%)
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Product Specifications
- Other Name: Valve Kit, Emission Control System; Secondary Air Injection Check Valve; Diverter Valve; Valve, Emission Control System
Fits the following GMC Models:
- Terrain | 2012 | SLE, SLT | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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GMC Check Valve Part Number: 12567733
$107.37 MSRP: $218.06
You Save: $110.69 (51%)
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Product Specifications
- Other Name: Valve Assembly-Secondary Air Injection Check; Secondary Air Injection Check Valve; Diverter Valve; Valve, Emission Control System
- Replaces: 12558992
Fits the following GMC Models:
- Jimmy | 1998-2001 | Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- Sonoma | 1998-2001 | SL, SLE, SLS | 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS, 6 Cyl 4.3 L GAS
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GMC 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)
Fits the following GMC Models:
- C1500 | 1991-1993 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS
- C1500 Suburban | 1992-1994 | Base, SLE | 8 Cyl 5.7 L GAS
- C2500 | 1991-1993 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1992-1994 | Base, SLE | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1991-1993 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- K1500 | 1991-1993 | Sierra, Sierra SLE, Sierra SLX, Sierra Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS
- K1500 Suburban | 1992-1994 | Base, SLE | 8 Cyl 5.7 L GAS
- K2500 | 1991-1993 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- K2500 Suburban | 1992-1994 | Base, SLE | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K3500 | 1991-1993 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
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GMC 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
Fits the following GMC Models:
- C2500 | 1997-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 7.4 L GAS
- C2500 Suburban | 1997-1999 | Base, SLE, SLT | 8 Cyl 7.4 L GAS
- C3500 | 1997-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 7.4 L GAS
- K2500 | 1997-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 7.4 L GAS
- K2500 Suburban | 1997-1999 | Base, SLE, SLT | 8 Cyl 7.4 L GAS
- K3500 | 1997-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 7.4 L GAS
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GMC Check Valve Part Number: 12556070
Product Specifications
- Other Name: Valve Assembly-Secondary Air Injection Check; Valve, Emission Control System
Fits the following GMC Models:
- Sierra 1500 | 1999-2001 | SL, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS
- Sierra 2500 | 1999-2000 | SL, SLE, SLT | 8 Cyl 5.3 L GAS
- Sierra 2500 HD | 2001 | SL, SLE, SLT | 8 Cyl 8.1 L GAS
- Sierra 3500 | 2001 | SL, SLE, SLT | 8 Cyl 8.1 L GAS
- Yukon | 2000-2001 | SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS
- Yukon XL 1500 | 2000-2001 | SLE, SLT | 8 Cyl 5.3 L GAS
- Yukon XL 2500 | 2001 | SLE, SLT | 8 Cyl 8.1 L GAS
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GMC A.I.R. Pump Valve Part Number: 12550930
Product Specifications
- Other Name: Valve, Emission Control System
Fits the following GMC Models:
- Savana 3500 | 1996-1999 | Base, SLE | 8 Cyl 7.4 L GAS
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GMC 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)
Fits the following GMC Models:
- C3500 | 1988-1989 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 7.4 L GAS
- G3500 | 1988-1989 | Magnavan, Rally, Rally Camper Special, Rally STX, Vandura, Vandura Special | 8 Cyl 7.4 L GAS
- K3500 | 1988-1989 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 7.4 L GAS
- R2500 | 1988-1989 | Base, High Sierra, Sierra Classic | 8 Cyl 7.4 L GAS
- R2500 Suburban | 1988-1989 | Base, Sierra Classic | 8 Cyl 7.4 L GAS
- R3500 | 1988-1989 | Base, High Sierra, Sierra Classic | 8 Cyl 7.4 L GAS
- V3500 | 1988-1989 | Base, High Sierra, Sierra Classic | 8 Cyl 7.4 L GAS
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GMC 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)
Fits the following GMC Models:
- C2500 | 1984 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS
- C2500 Suburban | 1984 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS
- C3500 | 1984 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS
- K2500 | 1984 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS
- K2500 Suburban | 1984 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS
- K3500 | 1984 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS
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GMC 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
Fits the following GMC Models:
- C1500 | 1988-1993 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- C1500 Suburban | 1992-1993 | Base, SLE | 8 Cyl 5.7 L GAS
- C2500 | 1988-1993 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1992-1993 | Base, SLE | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C3500 | 1988-1993 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- G1500 | 1987-1991 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS
- G2500 | 1987-1991 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS
- G3500 | 1987-1991 | Magnavan, Rally, Rally Camper Special, Rally Custom, Rally STX, Vandura, Vandura Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS
- Jimmy | 1987-1993 | Base, Sierra Classic, SLE, SLS, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- K1500 | 1988-1993 | Sierra, Sierra SLE, Sierra SLX, Sierra Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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GMC Secondary Air Injection Check Valve

Choose OEM Secondary Air Injection Check Valve, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with GMC's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM GMC Secondary Air Injection Check Valve. You can shop at highly competitive prices and protect your budget. All our genuine GMC parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

GMC Secondary Air Injection Check Valve prevents backflow of exhaust which protects pumps and reduces emissions. The GMC trucks and SUVs expanded to a 1901 assembly area to a series of vehicles that would handle hard work and the daily commute. Steel frames shake off heavy weight and hi-power output powertrains haul trailers with ease. Silent cabins, intelligent surround view cameras, and hitch guidance ensure that the drivers are not dealing with stress but remain focused. The MultiPro tailgate demonstrates GMC innovation in terms of flipping, folding and stepping to tame cargo beds in seconds. Work and weekend trail suspensions compromise grip and comfort on cracked surface. Never-ending lab and road development implies rust, noise and rattle are run out before keys are delivered to owners. New technological improvements are introduced regularly with the passage of time but basic stability in durability maintains. The Secondary Air Injection Check Valve is between the air pump and the exhaust stream and closes when positive air pressure forces fresh oxygen into the system and closes when the back pressure is high to prevent the pump internals from melting, preventing the raw fumes bypassing the catalytic converter and maintaining the hydrocarbon and carbon monoxide levels low without impairing their fuel economy. Since the Secondary Air Injection Check Valve is based on the simple pressure differences rather than on the motors and sensors, it remains stable during engine loads, weather variations, and even between model years.

GMC Secondary Air Injection Check Valve Parts and Q&A

Check Valve
12556070
Q: How to replace the Secondary Air Injection Check Valve/Pipe on Bank 1 on GMC Yukon XL 1500?
A:
The first step for replacing the bank 1 Secondary Air Injection Check Valve/pipe involves removing its clamp then disconnecting the Air Hose. The replacement process begins by six steps. The technician must first remove the check valve from the left air pipe before taking out the air pipe from the Exhaust Manifold. The check valve replacement requires a valve operation inspection through a Vacuum Pump connection to the check valve nipple (AIR pump side) with 10 inches hg pressure and 5-second vacuum decay observation for decision-making. The check valve installation requires the attachment to the air pipe with 23 n.m (17 lb ft) torque followed by the air pipe hook-up to the Exhaust Manifold using 20 n.m (15 lb ft) torque. Last step involves attaching the hose from the check valve and tightening it with the provided clamp.