Skip the auto shop - Our mechanics make house calls

How Long Does an Air Pump Belt Last?

air pump belt

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 create combustion. The secondary system employs a pump that sends air to the exhaust system, where it is taken back up and re-burned in order to deliver better gas mileage and reduce pollution. The air pump on the secondary system could be operated electrically, or by means of a belt. Belt-driven systems are actually becoming less common, but your vehicle could still be equipped with such a system. It could be a dedicated belt, or the system could be driven by the serpentine belt which delivers power to all of your engine’s accessories.

The belt essentially takes the energy from your engine’s crankshaft and delivers it to the pump. If the belt breaks, then the secondary injection system stops working and your air pump stops. If it is driven by a serpentine belt, of course, everything stops.

The air pump belt is used every time you drive. That means that it sees a lot of use, and is vulnerable to wear. Even if you don’t drive much, though, belts are subject to wear and tear simply due to aging. You could get up to eight years out of your belt, but it is more likely that it will have to be replaced within three or four years. At the very least, at the three-year point your air pump belt should be examined for signs that it may need to be replaced. Those signs include:

  • Cracking
  • Stretching
  • Missing ribs

If you think that your air pump belt may be nearing the end of its life, then you should have it checked out. A professional mechanic can examine all of your automotive belts, and replace the air pump belt and any others that are showing signs of damage.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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

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...
P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...


Related questions

Q: Belt keeps shredding; battery won't stay charged

Hi there. If a belt keeps shredding, there may be a problem with one of the engine's pulley's or a tensioner. This is probably the cause for the battery not charging, as the battery is charged by a belt driven...

Q: 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...

Q: Belt problem, maybe a pulley problem?

Nothing ruins a nice drive down a scenic road, or worse yet, a rush hour commute, like the serpentine belt deciding to make a run for it. Matters are further complicated when the problem goes further than the belt. There’s...