Back to all

What Is an EGR Valve? (EGR Valve Service)

August 21, 2022

If you've ever felt your vehicle hesitate, go, then hesitate again, you might think there's something wrong with the transmission.  After all, it's not moving smoothly  down the road.  But there are plenty of malfunctions that can cause those symptoms, one of them being something you may have never heard of: the EGR valve.

EGR stands for Exhaust Gas Recirculation. It's a system that channels small amounts of exhaust back into the engine to cool down the cylinders and reduce polluting gases.  Those include nitrogen oxides that can cause smog. The EGR valve regulates how much of the vehicle's exhaust gas is recirculated. After years and long distances traveled, that valve can get clogged or fail. Sometimes the EGR valve can stick open.  When the EGR valve isn't working properly, your vehicle can start releasing those nitrogen oxides and pollute the air.

The symptoms of a malfunctioning EGR valve include:

  • Engine losing power
  • Engine idling roughly
  • Pinging and knocking sounds in the engine
  • Stalling and hesitation
  • Fuel economy decreasing
  • Check Engine light illuminated

 

Depending on its condition, the EGR valve can be cleaned or it may need to be replaced.  Consult with your service advisor to see what options are recommended to you.

The EGR system is part of your vehicle's pollution and emissions control equipment. If you care about keeping our planet's atmosphere clean, you'll want to make sure it's doing its job—for everyone's benefit.

Tuffy Amherst
101 N Leavitt Road
Amherst, Ohio 44001
440-988-9402
https://www.tuffyamherst.com

More articles from Tuffy Amherst - Auto Repair Center

How Does Tuffy Amherst Know What to Recommend?

January 25, 2026

When you drop your vehicle off at Tuffy Amherst in Amherst, they don't just poke around under your hood looking for stuff to do. Tuffy Amherst professionals have lists and procedures they follow for different types of service. First of all, your Amherst service center will note the mileage on you... More

Alternator Facts (Failing Alternator)

January 18, 2026

If you notice that your headlights are flickering at night, that's something to pay attention to. While there could be many different things that could cause that problem, one possibility is your vehicle's alternator. The alternator takes mechanical energy from the engine and turns it into electr... More

I Want a New Vehicle. Or Do I? (Vehicle Maintenance Payoffs)

January 11, 2026

Spring is a peak season for vehicle sales; companies aggressively market new models and offer all sorts of incentives. So you may be tempted to buy a shiny new beauty. But should you? If you've regularly maintained the vehicle you're driving now, you probably don't NEED a new one. Even if your... More