Car Care Advice

How To Clean An EGR Valve And EGR Ports

Needed tools:

  • Gloves
  • Socket Prepare + Ratchet
  • Wrenches
  • Rust Penetrant
  • Throttle Body Cleaner
  • Pick Set
  • Vehicle Specific Service Transmission
  • Wire coat hanger

Grooming:

  1. Put the vehicle in park and apply the emergency brake. Consult your possessor's/repair manual to locate the EGR valve.
  2. Plough off the engine and disconnect the battery.
  3. Inspect all vacuum lines for rips, tears, and holes. Replace equally necessary.
  4. Remove the vacuum line or unplug the electrical connector from the EGR valve.
  5. Remove the bolts that concur the EGR valve to the cylinder head or intake manifold.
  6. Remove the EGR valve. Be careful to protect the open cylinder head or intake manifold from any droppings.

How to Clean EGR Valve?

  1. Spray cleaner in both openings of the EGR valve. The picture below is for reference, simply your specific EGR valve may appear different as the ports may be in another configuration.
  2. If it'south really dirty, you lot may need to utilise a pick to scrape off the bigger chunks of carbon or a wire brush.
  3. Y'all may also need to let the cleaner sit in the valve for several hours.
  4. Don't be afraid to apply too much cleaner.
  5. Afterward it'south clean, set up it aside and move on to the adjacent step of cleaning the ports.

Here'due south a helpful video showing the in a higher place procedure.

How To Clean EGR Ports?

This role of cleaning the EGR organization is often overlooked and tin make whatever repairs made to the system invalid due to a restricted, or in some cases completely blocked, passage(s) in the ports themselves. Ever bank check and make clean these ports when servicing the EGR system. Here'south a helpful video of the following process.

  1. Note where the EGR Valve connects to the intake manifold or cylinder head. This is where the largest corporeality of carbon will be congenital up due to the modify in temperature as the hot exhaust gases come up into contact with the cool intake manifold gases. This will be where you offset the EGR passage cleaning procedure.
  2. Get-go by spraying the cleaner into the port.
  3. Then apply a pick or a repurposed wire coat hanger to push through the carbon.
  4. Continue this until you tin can spray cleaner all the way through the passageway. Tech Tip: Some passageways may not appear to exist passageways at all due to being completely blocked. In this case, poke through and slowly work at cleaning the carbon away.

Below are some examples of clogged EGR ports.

  1. Some vehicles may have multiple cleaning ports for the EGR system. Reference your vehicle-specific service transmission to see if this applies to your vehicle. If it does, remove the access plugs and clean these ports in the same manner as above.
  2. After all the ports are cleaned and the EGR valve is cleaned, reassembled all removed parts, articulate whatsoever codes, and examination drive to meet if you have resolved your problem. Congratulations, you have now cleaned your auto's entire EGR system!

FIXD Team

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