How to replace the Air Inject Check Valve on Bank 1 on Cadillac Seville?

The first step to replace the bank 1 secondary air injection (AIR) shut-off valve involves disconnecting its electrical connector followed by removing the nut between the valve and the intermediate hose. The outlet pipe extraction from the Exhaust Manifold begins by removing 2 nuts while the 3 air shut-off valve cam cover retaining bolts are also removed before removing the outlet pipe with bracket from the engine's area. Discard the existing gasket during this step. Proceed to remove two outlet pipe securing nuts from the air shut-off valve followed by discarding the gasket. The installation process entails using a new outlet pipe gasket to position the air shut-off valve towards the outlet pipe and bracket before tightening the two nuts to 9 nm (80 lb in). To install this component first position the air shut-off valve bracket with the cam cover while placing an outlet pipe gasket between the Exhaust Manifold and the air shut-off valve. After that secure the 3 bolts to tighten at 9 nm (80 lb in). Connect and tighten an intermediate hose to the air shut-off valve before securing it with another nut which should be tightened to 9 nm (80 lb in). Connect the electrical connector to finish the installation of the air shut-off valve.

OEM Cadillac Seville Air Inject Check Valve

Air Injection Reaction Check Valve

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6 Air Inject Check Valves found

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Cadillac Seville Check Valve
Part Number: 12619127
$267.88 MSRP: $544.10
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Product Specifications
- Other Name: Valve, Emission Control System; Secondary Air Injection Check Valve; Diverter Valve
- Replaces: 12583069, 12584623
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Cadillac Seville | SLS | 8 Cyl 4.6 L GAS
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Cadillac Seville Check Valve
Part Number: 22040899
Product Specifications
- Other Name: Valve Assembly-Air Injector Check; Secondary Air Injection Check Valve; Diverter Valve; Valve, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1990 Cadillac Seville | Base, Elegante, STS | 8 Cyl 4.1 L GAS, 8 Cyl 4.5 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac Seville Diverter Valve
Part Number: 17087302
Product Specifications
- Other Name: Valve, Emission Control System; Secondary Air Injection Check Valve; Air Control Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987 Cadillac Seville | Base | 8 Cyl 4.1 L GAS
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Cadillac Seville Diverter Valve
Part Number: 17087225
Product Specifications
- Other Name: Valve, Emission Control System; Secondary Air Injection Check Valve; Air Control Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1989 Cadillac Seville | Base, STS | 8 Cyl 4.5 L GAS
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Cadillac Seville Diverter Valve
Part Number: 17086010
Product Specifications
- Other Name: Valve, Emission Control System; Secondary Air Injection Check Valve; Air Control Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986 Cadillac Seville | Base, Elegante | 8 Cyl 4.1 L GAS
View related parts
Cadillac Seville Diverter Valve
Part Number: 17071106
Product Specifications
- Other Name: Valve Air, Emission Control System; Secondary Air Injection Check Valve; Valve, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 Cadillac Seville | Base, Elegante | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL

Cadillac Seville Air Inject Check Valve

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Cadillac Seville Air Inject Check Valve Parts Questions & Experts Answers

Check Valve
12619127
Q: How to replace the Air Inject Check Valve on Bank 1 on Cadillac Seville?
A: The first step to replace the bank 1 secondary air injection (AIR) shut-off valve involves disconnecting its electrical connector followed by removing the nut between the valve and the intermediate hose. The outlet pipe extraction from the Exhaust Manifold begins by removing 2 nuts while the 3 air shut-off valve cam cover retaining bolts are also removed before removing the outlet pipe with bracket from the engine's area. Discard the existing gasket during this step. Proceed to remove two outlet pipe securing nuts from the air shut-off valve followed by discarding the gasket. The installation process entails using a new outlet pipe gasket to position the air shut-off valve towards the outlet pipe and bracket before tightening the two nuts to 9 nm (80 lb in). To install this component first position the air shut-off valve bracket with the cam cover while placing an outlet pipe gasket between the Exhaust Manifold and the air shut-off valve. After that secure the 3 bolts to tighten at 9 nm (80 lb in). Connect and tighten an intermediate hose to the air shut-off valve before securing it with another nut which should be tightened to 9 nm (80 lb in). Connect the electrical connector to finish the installation of the air shut-off valve.