The vacuum pump produces the vacuum power needed for vehicle functions such as braking and some HVAC functions.
Symptoms of Wear or Failure
- Brake pedal may be hard
- Heating, ventilation, and AC (HVAC) system may malfunction
- Abnormal noise
Related Repair Advice
- It's a good idea to use a factory quality (OEM) vacuum pump. If the pump is belt driven, replace the drive belt as well.
- Components that rely on the vacuum pump (climate control and/or brake system components) may be incorrectly replaced if there is an issue with the vacuum pump
- Vacuum pumps are used on Diesel engines (since they do not produce vacuum) and on some gasoline engines that produce little vacuum, such as turbos