Exhaust Back Pressure New drivers are not really familiar with the importance of exhaust back pressure and what it is really all about. Exhaust back pressure is the part of the car that limits the flow of the gas within the exhaust system. It compresses and releases the force to go back to its engine. Back pressure is also responsible for adequate use in diesel powered cars to enable the driver to slow down or to even stop with maximum control if needed. This article will help you learn more about exhaust back pressure through the following:

  1. Back pressure is also used along with engine retarders. These enable the release of compression from the engine. Oftentimes, it is in a slow or heavy manner depending on the need of the driver. This is often used by diesel powered engines because unlike gasoline powered cars, diesel powered cars don’t have built in engine brake system.
  2. The engine exhaust brake has also something to do with the back pressure because it is one of the kinds of engine retarder that also uses back pressure to make the car stop. This part is responsible in making a resistance over the pistons of the engine that makes the rotation lower. It makes the slowing of the car very much in control every time it stops.
  3. Having exhaust back pressure on your car offer a lot of benefits because it can help a car to slow down especially diesel powered cars. Whenever you go and drive along the hills, you will have more secured brake and the car won’t roll down as well. The braking components also have longer life span.

Measuring back pressure of the car is not a daunting task because all you have to do is to go underneath the car and position yourself to the exhaust pipe. It can be found just behind the engine. The exhaust pipe is connected to the catalytic converter and to the muffler of your car. You need to screw the end of the psi pressure gauge through the hole and then start the car and read the gauge. You can easily read the pressure clearly when the car engine is in idle mode. The pressure gauge should read 1.5 but not more than 2.75. After seeing it you can now turn off the engine of the car.