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Cleaning EGR ports with intake on?

Discussion in 'The Injection Section' started by Cricket, Jul 3, 2006.

  1. Cricket

    Cricket 3/4 ton status

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    Anyone ever attempted to clean the EGR passages with the manifold on the truck?

    Is it possible with the right brush, like a rifle cleaning brush? I've got the old SES light back again. Everything has checked out except the EGR passages.
     
  2. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    When I last had the manifold off of my '91 the EGR passage was REALLY blocked up. There is a 'dead end' from the EGR port down to the cylinder head. It was blocked solid. And I mean solid. I had a screw driver digging at it for ten minutes before I got rid of the worst of it. Solid carbon . If yours is that bad you'll never do it with a brush.
     
  3. Cricket

    Cricket 3/4 ton status

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    Thanks Mark, that's what I was afraid of. :D

    Ah well, I said piss on it and ordered an Edelbrock TBI manifold. I've had my fill of dinking around with this problem.
     
  4. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    That's what I did too! If you suddenly lose torque converter lock up let me know! j/k.....I hope.
     
  5. Cricket

    Cricket 3/4 ton status

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    Thankfully I have the old TH350. :D
     
  6. beater_k20

    beater_k20 Banned

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    sure its not a 350C? at which point, you've got a lockup to worry about.
     
  7. Cricket

    Cricket 3/4 ton status

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    Positive.

    I'm wondering if the installer left the EGR ports intact in the intake gasket, I shall know next week.
     

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