What is secondary air mass?
An air mass which has been modified by the passage of time or by its movement to a different area.
Where does the secondary air pump go in a car?
The secondary-air pump draws in ambient air and injects it into the exhaust manifold downstream of the exhaust valves. There is a separate integrated air filter if the air is not drawn in from the intake system but rather directly from the engine compartment.
Where is the secondary air valve in a car?
Secondary-air valves are fitted between the secondary-air pump and the exhaust manifold. Use is made of different versions. The secondary-air non-return valve stops exhaust gas, condensate or pressure peaks in the exhaust system (e.g. misfiring) causing damage to the secondary-air pump.
Where is the secondary air filter on a car?
There is a separate integrated air filter if the air is not drawn in from the intake system but rather directly from the engine compartment. Secondary-air valves are fitted between the secondary-air pump and the exhaust manifold. Use is made of different versions.
What are the components of an air injection pump?
The air injection system introduces oxygen into the exhaust engine at certain times to reduce emissions. Typical system components include the PCM, air injection relay, air injection hoses, valves and the pump. The air injection pump can be either belt driven or electric – for this article, we will focus on the belt-driven design.
How to replace a secondary air injection pump?
Step 1: Locate the air injection pump. The air pump is at the front of the engine with the serpentine belt wrapped around it. Tip: Make sure there is a belt routing diagram under the hood of your car so you know how to reinstall the belt. If not, take a picture of the belt routing with your phone before proceeding further.
The air injection system introduces oxygen into the exhaust engine at certain times to reduce emissions. Typical system components include the PCM, air injection relay, air injection hoses, valves and the pump. The air injection pump can be either belt driven or electric – for this article, we will focus on the belt-driven design.
Where is the air pump on a car?
The air pump is at the front of the engine with the serpentine belt wrapped around it. Tip: Make sure there is a belt routing diagram under the hood of your car so you know how to reinstall the belt. If not, take a picture of the belt routing with your phone before proceeding further. Step 2: Remove the serpentine belt.
How much does a secondary air injection system cost?
The part is simply called “Cover” which is why it took me forever to find in diagrams, but its part number 12574378, and it costs $6.04. I am ordering one Thursday so I can pick it up at the dealership Saturday when I have the oil changed on my car.