Skip the auto shop - Our mechanics make house calls

Symptoms of a Bad or Failing Air Pump Filter

air pump filter

Bad or Failing Air Pump Filter Inspection

by a top-rated mechanic at your home or office

An air pump is an emission component that is one of the most important pieces on a vehicle’s secondary air injection system. Certain vehicles will come equipped with a filter for their emission system air pump. The air pump filter is simply meant to filter the air that is pumped into the vehicle’s exhaust stream through the air injection system. Same as with an engine or cabin air filter, the air pump filter will pick up dirt and dust, and will eventually need to be replaced once it can no longer filter air efficiently.

The air pump filter serves a similar purpose as the engine air filter, however in most cases, it is not as easily accessible for quick inspection and service, as is the engine air filter. The air pump filter serves an additionally important purpose because it is an emissions component, meaning any problems with it can cause the vehicle to have problems with an emissions system, as well as with engine operation. Usually, when the air pump filter is in need of attention, the vehicle will display a few symptoms that can alert the driver that there may be a problem that should be serviced.

HAVE SYMPTOMS OF CAR TROUBLE?
Get an $80 diagnostic
by a top-rated mechanic at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

1. Engine is running sluggishly

One of the first symptoms that a bad air pump filter may produce is a decrease in engine power and acceleration. A dirty filter will restrict airflow into the air pump which can negatively affect the rest of the system. A dirty or clogged air filter may restrict airflow to the point where the vehicle may become noticeably slower during takeoff and acceleration.

2. Rough and shaky idle

Another symptom of a dirty or clogged air pump filter is a rough idle. An excessively dirty filter will restrict airflow, which may cause an unstable idle that surges. In more severe cases, a clogged air filter may disturb the idle mixture enough to cause stalling when operating the vehicle.

HAVE SYMPTOMS OF CAR TROUBLE?
Get your car fixed at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

3. Decrease in fuel efficiency

A dirty air pump filter can also have an impact on fuel efficiency. The restriction in airflow from a dirty filter will upset the vehicle’s air-fuel ratio tune, and cause the engine to use more fuel to move the same distance and speed as would be required with a clean, free-flowing filter.

Because the air pump filter can dramatically affect a vehicle’s emissions and performance, it is important to replace this filter at regular service intervals. If you suspect that your filter may be due for a change, or you find that you need one replaced, have a professional technician, such as one from YourMechanic, inspect the car and replace the air pump filter for you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Still not sure about your car's issue?
Diagnose your car
What kind of issue are you experiencing?
Brakes are squeaking
Car is not starting
Car is overheating
Car is shaking (vibrating)
Fluids are leaking
Heating and A/C
Smoke or steam is coming out of the car
Warning light is on
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How Long Does a Fuel Filler Neck Last?
Getting gas from the pump to your gas tank is the only way to keep a car going. The fuel filler neck is a metal tube that is welded to the...
Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.
P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem What the P0121 code means P0121 is a generic OBD-II code which indicates that the Engine Control...


Related questions

Q: Runs fine with the map sensor vacuum line plugged off

Hello, the map sensor is an input of engine load. When the map sensor is disconnected it will set a fault code which is emission base and check engine will come on,this cause the system to go into a default...

Q: A.I.R. pump is missing in my car

Hello. The A.I.R. system is an emissions system that is designed to inject air into the exhaust manifold to help with the combustion of any unburned fuel before it reaches the catalytic converter, resulting in cleaner emissions. In order to...

Q: Check Engine Light on after changing oil - 2012 Kia Rio5

If starting it today was the first time after changing your oil, the oil filter and oil galleries were empty for a few seconds. If this is the case, the Check Engine Light is reflecting the lack of oil pressure...