How to clean out your EGR system. (56k beware) - Page 8

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  1. #71
    CelicaSupra.com Member ddd228's Avatar
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    May 2005
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    N. Seattle.
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    4,431
    Well,after all of that work to unplug the passage,the engine will not "BOG" when I manually open the EGR valve,Jim.

    See the PIX above.

    I added a 4/40 bolt with an O ring in the middle of the freeze plug,so I could force feed some cleaner in there ,when I wanted to.
    I made this out of a plastic syringe and a valve used to inflate basket balls and I injected some Techron in there until the engine died and let it sit overnight.
    Didn't work.
    Maybe black powder gun cleaning solution would by pass the need to pull that damn thing apart again.
    Same method.

    About 1,000 cc's may do it.
    Maybe the passage is blocked just passed the EGR valve.
    The gun shop in Wenatchee,WA didn't have black power(Sorry) gun cleaning solvent.
    Dave in Seattle. I keep LATE hours.Hidden Content
    '84 type "L" ,Auto ,daily driver. Dk blue.

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  3. #72
    CelicaSupra.com Member drjim's Avatar
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    SoCal / Long Beach
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    "Hoppe's #9" or Birchwood-Casey "Gun Scrubber" should work equally well to dissolve carbon deposits.

    My EGR valve was clean, the passage wasn't too bad, but the little brass "spout" tube that directed the exhaust gas flow to the throttle body was packed solid.

    The crud came out easily, but it surprised me that that was the only place I could find that had an obstruction.
    1985 5-speed "Ms. Swan"

    OH, What A Feeling!

  4. #73
    CelicaSupra.com Member SupraMoto's Avatar
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    Apr 2003
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    Victoria, B.C. Canada
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    Heres what I found inside my EGR, some was dry, and some was gooey (towards the intake where fuel is).

    '83 Black P-Type

    My threads:
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  6. #74
    Junior Member
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    Jan 2017
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    CA
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    27
    Thank you for this DIY! Hopefully it will allow me to pass smog!

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