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

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B P2160: Vehicle Speed Sensor B Circuit Low P2161:...


Related questions

Q: I have an intermittent misfire - 2002 Pontiac Grand Prix

Hi and thanks for contacting YourMechanic. The EGR can cause a misfire if it is stuck open when the engine is cold or running at a lower speed. The EGR replaces some of the air with burnt fuel to help...

Q: Car clicks but won't turn on or crank.

Depending on the speed of the clicking sound, this may be either a weak battery or potentially a failing starter solenoid. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity to the starter....

Q: The computer for my car says it's EGR flow and there is no other symptoms. What you think?

Either the EGR (Exhaust Gas Recirculation) valve is stuck open or is closed and not opening. First try removing the EGR valve and cleaning it out. Then see if the engine light goes out and the engine runs good. If...