Skip the auto shop - Our mechanics make house calls

How to Replace an Exhaust Gas Recirculation (EGR) Control Solenoid

an EGR control solenoid

High internal engine temperatures lead to the formation of oxides of nitrogen (NOx) that are smog forming pollutants. The exhaust gas recirculation (EGR) system is used to lower combustion temperatures and reduce NOx emissions. This is accomplished by reintroducing exhaust gases into the engine via an EGR valve.

Some EGR valves are vacuum controlled, some are completely electronic and some are a combination of the two. The hybrid systems often use a remote-mounted EGR control solenoid which is used to apply vacuum to the EGR valve itself. The solenoid is directly controlled by the powertrain control module (PCM).

The typical symptoms of a failed EGR control solenoid include stalling, surging, rough idle, increased emissions, and an illuminated check engine light.

Part 1 of 3: Locate the EGR control solenoid

In order to safely and efficiently replace your EGR control solenoid, you will need a couple of basic tools:

Materials Needed

  • Free repair manuals Autozone
  • Protective gloves
  • Repair manuals (optional) Chilton
  • Safety glasses

locating the EGR control solenoid (all other component references and number can be removed

Step 1: Locate the EGR control solenoid. The check valve is generally found mounted to the intake manifold or firewall.

Part 2 of 3: Remove the EGR control valve

disconnect the negative battery cable

Step 1: Disconnect the negative battery cable. Disconnect the negative battery cable and set it aside.

disconnecting the hose

Step 2: Disconnect the solenoid vacuum hoses. Disconnect the vacuum hoses by carefully sliding them off the connections.

Removing the electrical connector

Step 3: Remove the electrical connector. Remove the electrical connector by pushing down on the tab and sliding it off.

removing the fastener

Step 4: Remove the retaining fastener. Remove the solenoid retaining fastener using a ratchet or wrench.

removing the solenoid

Step 5: Remove the solenoid. Remove the old EGR control solenoid and keep it aside.

Part 3 of 3: Install the air injection check valve

Installing the new solenoid

Step 1: Mount the new solenoid. Mount the new solenoid in position.

tightening down the fasteners

Step 2: Install the fasteners. Reinstall the fasteners and tighten them until they are snug.

reinstalling the electrical connector

Step 3: Reinstall the electrical connector. Put the electrical connector back on.

reinstalling the hose

Step 4: Reinstall the vacuum hoses. Put back the vacuum hoses that you had removed earlier.

reconnect the negative battery cable

Step 5: Reconnect the negative battery cable. Reconnect the negative battery cable and tighten it down.

That’s it - you now have a new EGR control solenoid! If you’d prefer to leave this task to the professionals, YourMechanic offers an expert EGR control solenoid replacement service that you can rely on.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem What the P0121 code means P0121 is a generic OBD-II code which indicates that the Engine Control...
P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222 code means The manufacturer specifies a range of acceptable voltage to be produced from the throttle position...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...


Related questions

Q: I cleaned the EGR valve but I'm not sure if it is working now

Yes, if you pressed on the diaphragm and it stalled the engine that means that exhaust gases were flowing through the EGR valve as intended. A good way to test the EGR valve in its entirety is to use a...

Q: Transmission Leak from TV cable? (Kick down cable)

Hello. The first thing I would do is check the transmission fluid properly. With the engine running and the vehicle in park, check the transmission dipstick to see where the fluid level is out. If you overfilled the transmission and...

Q: Truck using too much fuel - 1995 Dodge Ram 1500

A variety of faults can cause your 1995 Dodge Ram 1500 to use excess fuel. The most common would be fuel leaks, EVAP system leaks, a leaking fuel injector, oxygen sensors, vacuum leaks, or a misfire condition. Faults such as...