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funny problem today

Discussion in 'The Injection Section' started by sweetk30, Jul 12, 2006.

  1. sweetk30

    sweetk30 professional hooker Premium Member

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    Location:
    horseheads , ny 14845
    we had a big gmc truck intoday. 90 tbi 454 2 ton dump. ran o.k. but loads up bad when first starting up in mornings. kind of doggy on power. we checked all the comon stuff. but we traced it down to a bad egr valve. get this the pintle was gone . whent someplace but its not on the egr anymore.

    funny thing was the whole time no codes or check engine light.

    priced a new one for the guy and thay said 120 our shop cost and not in stock ord item 3-4 days. guy said i dont care just make it run better. so we fired up the welder and filled the pintle hole shut. made a diffrence.

    so just a helpfull little story for ya to keep a eye open for.
     
  2. Cricket

    Cricket 3/4 ton status

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    Hey Woodchuck.

    Wouldn't an open EGR pintle at idle create a lean condition?
     
  3. sweetk30

    sweetk30 professional hooker Premium Member

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    yes it should as it is letting more air in the motor . but this thing was just funny .
     
  4. eagle mark

    eagle mark 1/2 ton status

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    Location:
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    Listen for pinging now. Advance curve is much higher with EGR valve.
     

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