Symptoms of a Bad or Failing Air Pump

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Cost of Replacing a Bad or Failing Air Pump

Common signs include the engine running rough, reduced horsepower, and the Check Engine Light going on. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Car Air Pump Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2005 Volvo XC90 $600 $529.90 $70.00 5% $637.40
2009 Subaru Forester $700 $629.53 $70.00 5% $737.03
2011 Ford E-350 Super Duty $434 $364.29 $70.00 7% $471.79
2012 BMW 550i xDrive $781 $710.60 $70.00 4% $818.10
2005 Infiniti QX56 $908 $837.87 $70.00 3% $945.37
2010 Jaguar XF $754 $578.79 $175.00 11% $847.54
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How to Diagnose a Bad or Failing Air Pump?

Air pump

An air pump, also commonly referred to as a smog pump, is an emissions component that is part of the secondary air injection system. It is responsible for pumping clean air into the vehicle’s exhaust stream to promote a cleaner and more complete burn before the fumes exit the tailpipe. By injecting clean air into the exhaust, the amount of hydrocarbon pollutants produced by the vehicle is reduced, as the entire system is finely tuned to run with the air provided by the air pump.

When it fails, the overall performance of the engine may suffer due to the lack of air. Many states also have strict emissions regulations for their road going vehicles, and any problems with the air pump or the air injection system can not only cause performance problems, but also cause the vehicle to fail an emissions test. Usually, a failed air pump will produce a few noticeable symptoms that can alert the driver that the vehicle requires attention.

1. Engine is running rough

One of the first symptoms of a bad or failing smog pump is a rough running engine. When a smog pump fails the finely tuned air-fuel ratios can be upset, and it will negatively affect the performance of the engine. The engine may have trouble idling, and may drop in engine speed, or stall when the pedal is pressed.

2. Reduced horsepower

Another common symptom of a bad air pump is a reduction in power output from the engine. Again, a failed smog pump can upset the tune of the vehicle, which will negatively impact overall engine performance. A failed air pump may cause the engine to hesitate or stumble on acceleration, and in more serious cases, cause a noticeable reduction in total power output.

3. Check Engine Light comes on

Another symptom that may be indicative of a bad air pump is an illuminated Check Engine Light. This will usually only occur after the computer has detected the air pump has completely failed, or an electrical problem with the air pump circuit has occurred. A Check Engine Light can also be caused by other problems, so it is important to have the computer scanned for trouble codes before making any repairs.

The air pump is an important component of the emissions system, and necessary to keep your vehicle running in proper order so that it can meet the proper emission requirements. If you suspect that your air pump may be having a problem, or your Check Engine Light has come on, have the vehicle diagnosed by a professional technician, such as one from YourMechanic. If necessary, they will be able to replace the air pump and restore proper performance to your vehicle.

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Recent Car Air Pump Replacement reviews

Excellent Rating


YourMechanic Car Air Pump Replacement Service

Average Rating

4.6/5

Number of Reviews

27

Rating Summary
25
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Joe

12 years of experience
255 reviews
Joe
12 years of experience
Very nice guy, did great work and spent time talking about my vehicle and explaining the other diagnosis. It was great to have our SUV fixed in our driveway first thing Saturday am. Having the option to supply your own parts is a HUGE plus. I'd highly recommend working with this mechanic. Dudes a straight shooter from the hip. Hard to find in the world of car repair.
2010 MERCEDES-BENZ ML350 - AIR PUMP - FRANKLIN, TENNESSEE

Joseph

24 years of experience
351 reviews
Joseph
24 years of experience
Joseph communicated with me well before the appointment and arrived at the agreed time. He was courteous and professional and completed my repairs promptly. I will not hesitate to use him again. 5 Star service.
2003 BMW 330I - AIR PUMP - HOUSTON, TEXAS

Richard

18 years of experience
451 reviews
Richard
18 years of experience
Satisfied
1996 FORD E-150 ECONOLINE - AIR PUMP - ATLANTA, GEORGIA

Jerimiah

16 years of experience
207 reviews
Jerimiah
16 years of experience
Fast and professional
2005 GMC ENVOY - AIR PUMP - HENDERSON, NEVADA

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