EGR Cleaning: What did I get myself into?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Bay Stater, Jan 1, 2018.

  1. Bay Stater

    Bay Stater Active Member

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    Oxi Clean has cleaned up the EGR valve on my assembly. I take a small paint brush to work the crude out. Have not noticed any greying. Perhaps it's now clean enough.(y)
     
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  2. Bay Stater

    Bay Stater Active Member

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    Here is an update on the EGR cooler. I pushed the wire rod through all the ports again getting a lot of the crud out. Will continue with the Oxi Clean cycles.:whistle:
    IMG_20180102_174148942.jpg IMG_20180102_174136199.jpg
     
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  3. Bay Stater

    Bay Stater Active Member

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    I paid $85 on eBay for the pleasure of cleaning up this EGR valve and cooler assembly:ROFLMAO:
     
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  4. Mendel Leisk

    Mendel Leisk Lapsed Cargo Cultist

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    As far as I know, the cooler is 100% Stainless Steel. So no greying is to be expected. The valve on the other hand, is mostly aluminum: strong alkalines (such as Oxi) will start dulling/greying it.

    Yeah, it is not that hard cleaning your own, just takes time.
     
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  5. m.wynn

    m.wynn Senior Member

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    For reference/comparison, some shots of the stock valve/cooler pulled from my 2010 @ 140k miles in April 2017. Swapped in valve/cooler from a 2015 salvage @ 18k miles, $115 shipped eBay. Eagles Ray and Jeff Honeywell assisted in a 4 1/2 hour blitz, including new water pump/t-stat.

    My Prius is down 4 quarts of oil 9000 miles after oil change
     
    #25 m.wynn, Jan 7, 2018
    Last edited: Jan 7, 2018
  6. grid

    grid Member

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    Same boat as you, plan to drive my prius to the ground. going to checkout some junk yards here soon for some to be had.
     
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  7. Raytheeagle

    Raytheeagle Senior Member

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    Lucky for you I have a spare that can be ready at some point :whistle:.

    All it’ll cost ya is a couple of cans of carb cleaner(y).
     
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  8. Mendel Leisk

    Mendel Leisk Lapsed Cargo Cultist

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    If anybody doesn't mind having the car down for a day, you can just clean the one you've got, not that hard.
     
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  9. JC91006

    JC91006 Senior Member

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    I finally started cleaning my 2010 today around 2pm. Took off a few easy parts and watched football while doing it. Removed egr pipe and realized it wasn't that bad. Cleaned it and put everything back.......back to football lol
     
  10. douglasjre

    douglasjre Member

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    Did a clean egr change your fuel economy?
     
  11. leeb18c

    leeb18c Active Member

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    If anyone is looking for quick EGR cooler swap in SF, I also can provide a clean EGR cooler as long as you return me your old one. :) I live near SF Zoo.
     
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  12. Raytheeagle

    Raytheeagle Senior Member

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    How’s your head gasket doing?

    I guess as importan, which gets more driving these days: the Prius or the nice new Volt:whistle:?
     
    #32 Raytheeagle, Jan 11, 2018 at 9:54 PM
    Last edited: Jan 12, 2018 at 7:18 AM
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  13. tvpierce

    tvpierce Active Member

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    I wonder if carb cleaner would be a better solution for cleaning the EGR valve? Brake cleaner is just a degreaser -- and this is not an oil/grease clean-up job. Carb cleaner and a tooth brush work like magic removing coked on crud in carbs, throttle bodies, and intakes.
     
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  14. JC91006

    JC91006 Senior Member

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    I used carb cleaner and it was fantastic, freed the carbon up in a few minutes
     
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  15. Bay Stater

    Bay Stater Active Member

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    I used break cleaner and oxi clean on the EGR Valve. Used an old toothbrush and small paint brush to agitate. Its pretty clean, but there is still some carbon crud in the bowl area. Haven't tried it yet, GumOut carburetor cleaner. :whistle:
     
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  16. Mendel Leisk

    Mendel Leisk Lapsed Cargo Cultist

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  17. padroo

    padroo Active Member

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    I have never done this job but has anyone ever tried oven cleaner to remove the carbon? Just curious.
     
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  18. mjoo

    mjoo Active Member

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    Isn't oven cleaner destructive to aluminum?

    Pixel XL ?
     
  19. Mendel Leisk

    Mendel Leisk Lapsed Cargo Cultist

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    Yeah but fine on the (stainless steel) cooler. As you know, obviously, it being your tip.

    I did try oven cleaner on the intake manifold, but it seemed ineffective. My take:

    EGR valve: brake cleaner
    Intake manifold: brake cleaner
    EGR cooler: brake cleaner with OxiClean follow up.
     
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  20. padroo

    padroo Active Member

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    OK good enough for me.

    It seems people are doing this on high mileage cars with at least 100,000 miles on them. I kept the last Prius for 10 years and never did anything to the engine other than routine maintenance. I told my wife at our age there is no need to drive old cars.
    I don't plan of keeping this one that long and hopefully there will be advances in technology that will give me what I really want an all electric. I like having a car under warranty for traveling.
     
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