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Symptoms of a Bad or Failing Air Pump Check Valve
A bad air pump check valve may create exhaust fume odor, fail your car's emissions tests, and turn on the Check Engine Light.
Symptoms of a Bad or Failing Air Pump Filter
If your engine is running sluggishly, the Check Engine Light is on, or there is a rough idle, you may need to replace your car's air pump filter.
Symptoms of a Bad or Failing Air Pump Belt
Check your car's air pump belt for cracks, large chunks of rubber missing, or scuffs along the outside.
Symptoms of a Bad or Failing Air Pump
Common signs include the engine running rough, reduced horsepower, and the Check Engine Light going on.
How to Buy a Good Quality Air Pump
Whether you call it an air pump or a smog pump, it comes down to the same thing – a pump designed to force air into the engine to help improve emissions by...
How to Replace an Air Injection Pump Filter
Air pump filters may be failing when the engine has a rough idle and is sluggish. Reduced fuel economy may also indicate a bad filter.
How Long Does an Air Pump Last?
In decades gone by, exhaust systems were not all that complicated. Emissions controls were not a concern, and any gases that were spent during the operation of your car were simply vented...
How Long Does an Air Pump Belt Last?
Most newer vehicles come with two air injections systems. The primary system delivers air through the air filter, and then to the intake, where it mixes with fuel in order to...
How Long Does an Air Pump Check Valve Last?
In modern emissions control systems, there is a secondary air injection system which delivers air to the exhaust system, while at the same time preventing exhaust fumes from escaping into...
How Long Does an Air Pump Filter Last?
In any vehicle that has an emissions system, otherwise known as a smog control system, it is vital that the air that enters the system is free of contaminants and debris....
How to Replace an Air Pump Check Valve
The air pump check valve allows air into the exhaust system. It also prevents exhaust gases from reentering the system during a backfire or failure.
How to Replace an Air Injection Pump Belt
Although some air pump injection belts can last as long as a vehicle, some may break down. Here's a guide on how to replace it when necessary.
How to Buy a Good Quality Tire Air Pump
Owning a car means an air pump is a great investment. It’s essential to keep your tires at the proper air pressure in order to protect them, your vehicle, and yourself. An air pump...

Related questions

Question
What should an average driver have in their car at all times?
A sober driver who's got brains and knows how to drive--that's the most important thing. But if you are worried about safety, you should have a fire extinguisher in trunk or put one under your seat, an air pump. You...
Question
Secondary air pump.
The air pump supplies the catalytic converter with extra oxygen so that it can efficiently catalyze any unburned fuel. On start up, the catalytic converter is cold and requires some help to quickly get up to temperature allowing it to...
Question
Draining battery and blowing air sound when car is turned off 2011 Jeep Grand Cherokee
Hello - based on your symptom information, your Jeep has the air suspension, and the noise you hear is air leaking, with the compressor continuing to run, draining your battery. This could be due to a failed switch in the...
Question
What is Estimated Cost of repairing P2432 code in 2012 VW Jetta ?
Hi - the P2432 problem code you have is an indication that the secondary air pump pressure is low. This is an emissions device, which injects fresh air into the exhaust to allow burning of any remaining fuel in the...
Question
High pitched whining noise on startup
The secondary air injection pump is well known for making noises such as this on all cars that use them. It only runs when the motor is below a preset temperature. So the longer you let the car sit, the...
Question
Problem with secondary air injection and the idle is hunting.
Hi there. When the air pump is working and the engine is running fine and then when the air pump is turned off and the engine idle starts to hunt, then there may be water in the air pump or...
Question
My car failed inspection with P0420 and P0411 codes 2005 VW Jetta
Hi there - the P0420 indicates a catalytic converter that is not working as efficiently as it should. This could mean a clogged converter, or weak oxygen sensor (probably the pre-converter O2 sensor). The P0411 code indicates a secondary air...
Question
Clogged manifold intake runner bank 1 2005 Mercedes C230 Turbo
Hi - the clogged intake is a long-term "carbon clogging" from the turbocharger/EGR valve operation. The manifold must be removed, disassembled, cleaned and reinstalled. Tedious, and requires moderate DIYr skills. Unfortunately, this is not a service YourMechanic offers at this...
Question
Engine vacuum pump and centrifuge is leaking.
Hi there. All parts on a car are designed to have a longevity date to them, but it is normal for parts that are more than 5 years old to fail. The vacuum pump and centrifuge could be leaking for...
Question
Need to replace the leak detection pump on my jeep.
Billing question sent to CS for the cost of replacing the leak detection pump on a 2005 jeep liberty.
Question
Electrical / Hose RODENT Damage to vacuum pump.
Hi there. If you have had a rodent living in your engine compartment, there could be multiple issues as rodents tend to chew through just about everything. It is possible that the rodent could have damaged the vacuum pump, but...
Question
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...
Question
The car shakes and randomly cuts off while driving. The car has steam/smoke coming from under hood.
Hi and thanks for contacting Your Mechanic. If your engine light came on for the secondary air pump sensor, then it is possible that the secondary air pump (smog pump) has failed. The pump has oil in it and if...
Question
why is the new air ride compresser louder than before? 20020 Oldsmobile Bravada
Hi - couple of possibilities for a "louder than before" air pump. If the pump was not securely bolted to the frame when installing it, vibration, and new noise radiates through the frame. If the spare tire, which encloses the...
Question
I have a p0410 code yet my air pump does operate however the flow doesn't seem to be very strong?
There is probably a filter in the pump and yes the filter could block flow. However, before you consider a plugged filter, inspect the check valves; they will commonly get plugged up or stuck. The pump flow is minimal and...
Question
Engine and Transmission mounts have collapsed. Do they have to be replaced immediately? How much for both? TBC....
If the engine mounts are faulty, the drive axles will operate at the wrong angle eventually causing premature wear-out of the axles so it is important to get the mounts replaced. If you would please refer to YourMechanic's motor mount...
Question
P0491 and P0492 Is the codes I'm getting on 2001 BMW 325i
Hi there - the P0491 and P0492 codes reflect a problem with the secondary air injection pump mechanism - not enough air flow is detected. This problem could be the pump itself (check fuses and relay), the check valve, or...
Question
Whining noise before starting-key in the ON position but not turning over the engine. 1999 Chevrolet Silverado 1500
Hello - your truck has a secondary air injection pump, which is powered by an electric motor. It is located under the hood, and is power up in the "Run" ignition switch position. I suspect what you are hearing is...
Question
Does my Honda Odyssey 2005 touring carry a smog/air pump? It makes a "Jake brake" kind of sound when the ECO light comes on! 2005 Honda Odyssey
Hello - your Honda Odyssey does indeed have a secondary air pump on less than 6 cylinders to save fuel (ECO=economy mode). Perhaps there is a hole in an exhaust system component which is causing the unusual noise, or the...
Question
I have issues with my air suspension. I have been reading through the forum of the topic, and I believe it has to do with my compressor.
The pump will become loud when it is under pressure and lifting a load. If the pump is quiet and you hear a hissing sound around where the pump is, either the pump is leaking or the main supply hose...

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