How to Remove a Smog Pump

A smog pump is a device that is installed in cars in certain states and areas and which is designed to help reduce the pollution output of the car. These components take exhaust from the car that was intended to be distributed out through the exhaust pipe and rechannel it into the engine. While this helps to reduce pollution and is legally required in some states, if you move to another area and are no longer required to have the smog pump, you may wish to remove it. Follow these instructions for how to remove a smog pump from your vehicle.

Tools and Materials

  • Ratchet and socket set with variable sized ratchets
  • Flat head screwdriver
  • Pliers
  • Vehicle owner's manual

Step 1 -- Locate the Smog Pump

Depending upon which type of vehicle you have, the smog pump may be in a different location. It's generally located adjacent to the coolant tank inside of your engine area. When your vehicle is cool, open up the hood and locate the engine, then the coolant tank, then the smog pump. If necessary, use your vehicle owner's manual to locate the pump first.

Step 2 -- Disconnect the Pump

Next, locate the electrical attachments for the smog pump. These will likely be connected at the top of the pump, although again the exact design may vary depending upon the type of car that you have. In many cases you'll be able to then remove the smog pump electrical connectors by hand. If you cannot, however, use the flat head screwdriver to pry the electrical connectors off of the pump. Tie back the electrical connectors to keep them out of the way.

Step 3 -- Remove the Hoses and Vacuum

You'll then need to remove the hoses and the vacuum system which are attached to the smog pump as well. In many cases, you'll be able to remove the hoses by using your pliers to hold the clamps that secure the hoses in place open. You may also need to use a flat head screwdriver in order to pry those clamps open. There should also be a vacuum line at the bottom end of the smog pump as well; remove this carefully by hand by pulling it out of the smog pump.

Step 4 -- Remove the Smog Pump from the Car

Finally, you'll be ready to lift and remove the smog pump from the car. It's a good idea to have a set place in mind to put the smog pump when you remove it. You may also wish to ask for an assistant to help you remove the pump, as these pumps can occasionally be somewhat heavy as well. Remove the pump carefully and be sure to not scratch it or bump it against any other items under the hood of the car.

After you've removed the pump, check the vehicle to be sure that there aren't any hoses or pipes which are still loose.