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

The first step of secondary air injection (AIR) shut-off valve replacement on bank 1 involves disconnecting its electrical connector. Originally remove the retaining nut which connects the intermediate hose to the air shut-off valve and disconnect the hose. Start by taking out the 2 outlet pipe nuts connecting it to the Exhaust Manifold followed by loosening the 3 air shut-off valve bolts on the cam cover before removing the air shut-off valve together with its outlet pipe and bracket from the engine. Discard the gasket during removal. Discard the gasket before you remove 2 nuts that connect the outlet pipe and bracket to the air shut-off valve. Place the new air shut-off valve with a fresh outlet pipe gasket on the outlet pipe and bracket before securing it using 2 nuts which should be tightened to 9 n.m (80 lb in). Install a new outlet pipe gasket to the Exhaust Manifold and place the air shut-off valve bracket assembly to the cam cover and Exhaust Manifold before tightening the 3 securing bolts to 9 n.m (80 lb in). Secure the outlet pipe to the Exhaust Manifold using 2 nuts which should be tightened to 9 n.m (80 lb in). Afterward attach the intermediate hose to the air shut-off valve and fasten the installed nut using 9 n.m (80 lb in) torque. Attach the electrical connection to the air shut-off valve sealing the operation.

OEM Cadillac DeVille Air Inject Check Valve

Air Injection Reaction Check Valve

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8 Air Inject Check Valves found

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Cadillac DeVille Diverter Valve
Part Number: 17075280
$190.25 MSRP: $513.83
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Product Specifications
- Other Name: Valve Air, Emission Control System; Secondary Air Injection Check Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Cadillac DeVille | Base, Cabriolet, d'Elegance, Touring | 8 Cyl 4.1 L GAS
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Cadillac DeVille Check Valve
Part Number: 12619127
$267.88 MSRP: $544.10
You Save: $276.22 (51%)
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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:
- 2004-2005 Cadillac DeVille | Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
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Cadillac DeVille 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 DeVille | Base, Cabriolet, d'Elegance, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 4.5 L GAS
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Cadillac DeVille 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:
- 1987-1989 Cadillac DeVille | Base, d'Elegance, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 4.5 L GAS
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Cadillac DeVille 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 DeVille | Base, Cabriolet, d'Elegance | 8 Cyl 4.1 L GAS
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Cadillac DeVille Check Valve
Part Number: 12568136
Product Specifications
- Other Name: Valve Assembly-Secondary Air Injection Check; Diverter Valve; Valve, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2003 Cadillac DeVille | Base, DHS, DTS | 8 Cyl 4.6 L GAS
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Cadillac DeVille Check Valve
Part Number: 12559826
Product Specifications
- Other Name: Valve Assembly-Secondary Air Injection Check; Diverter Valve; Valve, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2004 Cadillac DeVille | Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
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Cadillac DeVille Check Valve
Part Number: 12557976
Product Specifications
- Other Name: Valve Assembly-Secondary Air Injection Check; Diverter Valve; Valve, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 Cadillac DeVille | Base, DHS, DTS | 8 Cyl 4.6 L GAS

Cadillac DeVille Air Inject Check Valve

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Cadillac DeVille 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 DeVille?
A: The first step of secondary air injection (AIR) shut-off valve replacement on bank 1 involves disconnecting its electrical connector. Originally remove the retaining nut which connects the intermediate hose to the air shut-off valve and disconnect the hose. Start by taking out the 2 outlet pipe nuts connecting it to the Exhaust Manifold followed by loosening the 3 air shut-off valve bolts on the cam cover before removing the air shut-off valve together with its outlet pipe and bracket from the engine. Discard the gasket during removal. Discard the gasket before you remove 2 nuts that connect the outlet pipe and bracket to the air shut-off valve. Place the new air shut-off valve with a fresh outlet pipe gasket on the outlet pipe and bracket before securing it using 2 nuts which should be tightened to 9 n.m (80 lb in). Install a new outlet pipe gasket to the Exhaust Manifold and place the air shut-off valve bracket assembly to the cam cover and Exhaust Manifold before tightening the 3 securing bolts to 9 n.m (80 lb in). Secure the outlet pipe to the Exhaust Manifold using 2 nuts which should be tightened to 9 n.m (80 lb in). Afterward attach the intermediate hose to the air shut-off valve and fasten the installed nut using 9 n.m (80 lb in) torque. Attach the electrical connection to the air shut-off valve sealing the operation.

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