EGR valve:

Discover why EGR valves are important and how to replace them.

EGR valves: find out why it’s important to replace your EGR valve and how to do it yourself!

As engine combustion temperatures approach 2500 degrees, formation of smog producing nitrogen oxides, or NOx, increases. An EGR (exhaust gas recirculation) valve reduces these emissions by recirculating small amounts of exhaust back into the combustion chambers. Since exhaust is mostly carbon dioxide, it does not burn. Less burning reduces combustion temperature, and NOx emissions.

When a valve malfunctions, carbon dioxide is reintroduced at the wrong time, or in the wrong amounts. Engine performance suffers, as proper combustion does not occur.

Advance Auto Parts has the EGR valve replacement you need to bring your engine back to peak performance, along with other quality auto parts.

Why you should inspect EGR valves every 15,000 miles:

EGR valves recirculate carbon dioxide from your vehicle’s exhaust back through your engine. If the valve is malfunctioning you may experience reduced power, detonation (pinging), rough idle, or stalling and hesitation when accelerating. Inspect your valve and replace if required.

Here’s a list of what’s needed when replacing EGR valves:

EGR valve replacement; do-it-yourself difficulty guide:


Estimated time required - 1 - 4 Hours

How to inspect EGR valves; do it yourself & save:

Consult your repair manual for locating and removing the valve. Extensive component removal may be required to access and remove the valve.

  1. Locate the valve. Place the vehicle in park. Apply the emergency brake. Start the vehicle. Allow to warm up.
  2. Find the EGR plunger mechanism. The plunger meters the exhaust gas recirculation by opening and closing.
  3. Manually rev the engine and check for plunger operation. A plunger stuck open or closed indicates malfunction. Replace the valve.

For high quality auto parts – including the right EGR valve replacement for your vehicle – trust Advance Auto Parts!