What is an exhaust gas recirculation tube replacement?
Replacing an exhaust gas recirculation tube is a straightforward process. The mechanic performs a computer diagnostic and checks all the vacuum tubes that are connected to the EGR valve. In the event that the EGR valve is cracked or broken, the mechanic replaces it.
The EGR tube siphons away some of the NOx emissions passing through the exhaust manifold. The engine computer controls the amount of NOx mixed into the air in the intake system with the EGR valve. In idle and low speed environments, higher NOx to oxygen ratios mean a slower burn, lower temperatures, and fewer NOx emissions.
When should I replace my EGR tube?
Your vehicle's exhaust recirculation system can malfunction as a result of a broken EGR tube, resulting in warning signs like:
Failed emissions testing: Cars without EGR emit dirtier emissions and can seldom pass environmental testing.
A check engine light: Hook up an OBD reader and you might find engine code “P0400”, which signals a problem with EGR flow.
Rattling noises while accelerating or knocking noises while idling: Without the proper mix of NOx and oxygen, your car’s cylinders will have trouble firing in motion or at rest.
Key Takeaway High emissions, a check engine light, stalling, or a rough idle can all indicate a problem with your exhaust gas recirculation tube.
How long does an EGR tube last?
Some experts recommend replacing the EGR tube every 40,000 to 50,000 miles, but there's no consensus on how long it should last. If you drive a lot in hot temperatures and don't often perform maintenance, it’s life expectancy may be shorter. You may be able to extend its lifespan if you live in a temperate area and see a mechanic regularly.
Can I change an EGR tube myself?
Replacing an EGR tube is a great DIY project for beginners. It requires only basic equipment and doesn't require any complicated disassembly or reassembly. Budget an afternoon to complete this fix, and don’t forget to clean the EGR valve at the same time.