Exhaust Back Pressure Regulators
Important: To get started, click the blue "Filter Options" button to select your vehicle and then use the filters to narrow your options.
Important: To get started, select your vehicle on the left and then use the filters to narrow your options.
What is an Exhaust Back Pressure Regulator?
An Exhaust Back Pressure Regulator (EPR) is a device used in diesel engines to reduce exhaust emissions. It regulates the pressure of exhaust gases so that they are properly metered and pass through the catalytic converter in the exhaust system, helping reduce emissions.
What is the purpose of an Exhaust Back Pressure Regulator?
The purpose of an EPR is to keep exhaust emissions within the legal limits set by the government. It is designed to maintain the correct pressure of exhaust gases so that they can be properly treated by the catalytic converter, reducing exhaust emissions.
How do I know if my Exhaust Back Pressure Regulator is faulty?
One way to tell if your EPR is faulty is to check the exhaust pressure readings. If the readings are higher than normal, or if the exhaust system is running unusually loud, this may indicate that the EPR is not functioning properly. Additionally, if your vehicle is failing emissions tests, this could also indicate a faulty EPR.
Can a faulty Exhaust Back Pressure Regulator cause damage?
Yes, a faulty EPR can cause damage to the vehicle’s exhaust system, as well as other components. For example, a faulty EPR can cause the catalytic converter to overheat, leading to further damage.
How do I replace an Exhaust Back Pressure Regulator?
Replacing an EPR requires a few basic tools and steps:
- Disconnect the negative cable from the vehicle’s battery.
- Disconnect the exhaust system from the EPR.
- Remove the EPR from the engine using a wrench.
- Install the new EPR using the same wrench.
- Reconnect the exhaust system to the EPR.
- Reconnect the negative cable to the battery.