Secondary Air Injection Shut-Off Valves

Replacement Parts > Emission Control > Air Injection System

Secondary Air Injection Shut-Off Valves

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What is a Secondary Air Injection Shut-Off Valve?

A Secondary Air Injection Shut-Off Valve is a part of the air injection system of an automotive vehicle. It helps to reduce emissions by diverting exhaust gasses away from the exhaust manifold, allowing them to be recirculated back into the engine.

What is the purpose of a Secondary Air Injection Shut-Off Valve?

The purpose of a Secondary Air Injection Shut-Off Valve is to reduce emissions by diverting exhaust gasses away from the exhaust manifold and allowing them to be recirculated back into the engine. This helps to reduce the amount of pollutants released into the atmosphere.

How can I determine if my Secondary Air Injection Shut-Off Valve is faulty?

If your Secondary Air Injection Shut-Off Valve is faulty, you may notice a decrease in performance in your vehicle, such as a decrease in fuel economy or acceleration. You may also hear a loud hissing sound coming from the engine or exhaust system.

Can a faulty Secondary Air Injection Shut-Off Valve cause damage to the engine?

Yes, a faulty Secondary Air Injection Shut-Off Valve can cause damage to the engine. If the valve is not working properly, the exhaust gases can be recirculated back into the engine, causing damage to the engine components.

How do I replace a Secondary Air Injection Shut-Off Valve?

Replacing a Secondary Air Injection Shut-Off Valve can be a complicated process. First, you should consult your vehicle's owner's manual for the exact procedure. Generally, the steps involved include:

  1. Disconnecting the negative battery cable.
  2. Removing the intake manifold assembly.
  3. Unscrewing the valve from the manifold.
  4. Installing the new valve.
  5. Reattaching the intake manifold.
  6. Reconnecting the negative battery cable.