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

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed Related Trouble Codes: P2441: EVAP Vent Valve Stuck Open EVAP trouble...
Auto Safety Tips
Driving is more than a way to get from point A to point B. Owning and driving a car can also be a highly enjoyable experience. Whether a person is driving...


Related questions

Q: How Does Engine Timing Work?

Engine timing is actually a closely coordinated dance between valve timing, injector timing, and spark timing. Valve timing is the control of opening and closing the intake and exhaust valves in synchronization with the up / down movement of the...

Q: 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...

Q: Engine belt and fan turned off but air is still flowing

Hi there. Typically this type of situation is caused by a broken AC Condenser. When the condenser breaks, the flow of refrigerant is stopped at the condenser on the low pressure side, which can cause the engine to shut down...