Once the belt is removed or the electrical connector is disconnected, the pump is unbolted from its mount and the new pump is installed. If the pump is belt driven, the belt will then be installed and adjusted as necessary (replace the belt if an inspection deems it necessary). With an electric pump, the electrical connector should be checked for any damage and repaired as necessary prior to reconnecting it.
Here are the full steps to replace each type of air pump:
Electric Air Injection Pump
- Disconnect the negative battery terminal
- Remove any components that obstruct access to the electric air pump
- Disconnect any air hoses and electrical connectors
- Remove the fasteners that secure the air pump
- Remove the air pump and install the new one
- Secure the new air pump with its fasteners
- Reconnect all electrical connectors and air hoses
- Install any other removed components
- Reconnect the negative battery terminal and clear any codes
- Perform a Drive Cycle Test Drive to verify the repair
Belt Driven Air Injection Pump
- Disconnect the negative battery terminal
- Remove any drive belts that block access to the air pump
- Disconnect any air hoses and electrical connectors
- Loosen the air pump fasteners and remove the air pump
- Install the new air pump and secure its fasteners
- Reconnect any air hoses and electrical connectors
- Install any removed drive belts and reconnect the negative battery terminal
- Clear any codes and perform a Drive Cycle Test Drive to verify the repair
