Injecting freshly pressurized air into the exhaust stream is not an easy job. This is the reason why every vehicle needs a durable air pump that can manage to stay in excellent condition for a long period of time. But due to excessive use, old age, or moisture accumulation, air pump tear is unavoidable. If the air pump fails, the vehicle will suffer from annoying noises, inefficient fuel combustion, and poor emissions conversion. If you think it is time to change your stock air pump, here are the instructions to help you with the installation.
Required skill level: Intermediate
Needed tools and materials
- New air pump
- Floor jack
- Jack stands
- Ratchet and socket set
Preparing your vehicle
Make sure your vehicle is parked on a spacious area. Before you start working on the installation, put the gear shift to neutral or park. Open the hood and detach the negative battery cable using the socket and the wrench. After that, lift your vehicle up using the floor jack and set up the jack stands. Once the stands are secured, you may now locate the air pump.
Taking out the serpentine belt
Slightly loosen the bolts attached to the air pump pulley using the ratchet and socket, but remember not to remove them completely. Next, you have to release the pressure on the serpentine belt by turning the tensioner pulley clockwise. Once you're done, remove the belt completely from the air pump.
Removing the old air pump
Disconnect the rubber hoses attached to the air pump's body by unlocking the clamps using the pliers. Then, carefully detach the electrical connections of the pump. If possible, use your hands in unplugging the electrical wirings connected to the air pump. Unbolt the brackets holding the air pump in place, and lift the old or damaged air pump away from the engine. Discard the old stock.
Installing the new air pump
Take the replacement air pump and slowly put it in place. Once you're sure that the new pump is properly positioned on the mount, secure it by locking the air pump brackets. Re-attach the electrical wirings and the rubber hoses that were originally connected to the air pump. Make sure that the clamps are tightened and that the tubes are placed correctly. Re-install the belt, and put the pressure back on the tensioner pulley.
Evaluating the installation procedure
Once you have put everything back, take the vehicle down and remove the jack stands. Remember to reconnect the negative battery cable before you rev up the engine. Check for unusual noises. Observe if everything is working properly.
Tips and warnings
- The location of the air pump varies from one vehicle to another. Checking the owner's manual of your vehicle will help you locate the pump faster.
- It is advisable for you to use a shop light to help increase visibility within the hood. Improved visibility will make the installation easier.
- After you remove the hoses connected to the air pump, cover the bolt heads with Teflon tape to prevent scratches.
- Before reconnecting the rubber tubes back to the air pump body, apply a generous amount of copper sealant on the threads.