How to Replace an EGR Valve

Below guide will teach you How to Replace an EGR Valve . Please follow the instructions carefully.

Things You’ll Need:

  • Scan Tool
  • Socket and Ratchet Set
  • Wrench
  • 3/8 in. Drive Ratchet
  • EGR Valve
  • Vacuum Pump

Estimated Costs:

  • DIY Costs: Est. $445.87 parts only
  • Shop Costs: Est. $707.95 parts and labor


  • Consult the owner’s manual to have an idea about the position of the OBD-I or OBD-II data link connector.
  • Once the OBD data link connector is located, shift the ignition key to ON position. You need not to start the engine.
  • Connect the OBD scanner tool to the data link connector to retrieve the diagnostic trouble code. The diagnostic codes between P0400-P0408 are normally referred to as the generic trouble codes for the EGR system.
  • Inspect the EGR valve. For this take the vacuum line off and connect the hand-held vacuum pump in its place.
  • Turn the vehicle on and force the vacuum to the valve with manual pump.
  • If the engine speed drops at idle position, this means that the EGR valve is working properly. However, if the engine idle speed doesn’t alter then you need to replace the EGR valve.
  • Discard the vacuum line and electrical connections from the EGR valve.
  • Unfasten the bolts holding the EGR valve in place and take it away.
  • Replace the old gasket with the new one and fix the new EGR valve with bolts.
  • Put the vacuum line and electrical connections back onto the new EGR valve.
  • Clear the diagnostic trouble code with the help of OBD Scanner tool.
  • Discard the Scanner tool and turn the engine on and make certain that new EGR valve is functioning properly.

Further Reading

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