What is the Air Pump Filter?
In cars with a secondary air injection system for smog control (emissions system), it’s vital that the air being injected is clean and free of debris and contaminants. Because the air is being recirculate with exhaust gases to be burned again, any debris will eventually make its way into the combustion chamber, just as it would if the primary air filter wasn’t in place. To stop this from happening, an air pump filter is used.
An air pump filter works on the same principle as your regular air filter. The filter is made from a mesh material or sometimes cardboard. The filter fibers trap contaminants and debris, stopping them from entering the system. Also just like your air filter, there is only so much the material can hold. Sooner or later, it becomes clogged and must be changed.
Bear in mind:
The air pump filter is not checked during consistent upkeep like your primary air filter.
The air pump filter is still a critical part and should be serviced or changed when it is dirty.
How to Fix:
The air pump filter is confirmed to see if it needs to be changed
The faulty air pump filter is removed
The new air pump filter is fixed
The air pump filter are tested for operation
The vehicle is tested to ensure proper operation of the air pump filter
If dirt and debris are permitted to enter the combustion chamber, serious damage can happen. This is why there is an air filter on your manifold intake, as well as another on your air pump. Any source of fresh, outside air is also a possible source of contamination and damage. If your air pump filter is clogged or dirty, have it changed by one of your expert mechanics.
Common signs indicating you may need to change the Air Pump Filter:
Sluggish engine performance
The Check Engine light is on
You are not able to pass emissions testing
The engine idles rough
You experience poor fuel economy
Importance of this service:
While you’ll still be able to function your vehicle with a dirty air pump filter, you’ll suffer from reduced performance, and poor fuel economy. You also won’t pass your emissions tests. If your car is furnished with a secondary air injection system, have the air pump filter changed immediately.