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EGR valve important?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by DOUGHBOY, Nov 18, 2000.

  1. DOUGHBOY

    DOUGHBOY Registered Member

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    how important is the EGR valve.is it something that i need to have the engine run smooth and perform normal?im not worried about emissions.

    guns dont kill postal workers do.
    CENTRAL ILLINOIS
     
  2. blazen91

    blazen91 1/2 ton status

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    I beleive you can block it off and it will be fine, but will not pass emissions(but you don't care about that!) Make sure you plug the vacume line also.

    blazen91
    Protect the land FOR the people
    <font color=red>Not FROM the people</font color=red>
     
  3. DOUGHBOY

    DOUGHBOY Registered Member

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    blazen91,you know thats the anwser i was lookin for.

    guns dont kill postal workers do.
    CENTRAL ILLINOIS
     
  4. TX Mudder

    TX Mudder 1/2 ton status

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    By all means, get rid of it. Exhaust Gas Recirculation. All it does is choke your engine down a little with exhaust gas instead of clean air/fuel mixture.
    -- Mike
     
  5. Hayduke

    Hayduke 1/2 ton status

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    wont getting rid of it make your rig take a lot longer to warm up in the cold?
    HAYDUKE

    PS. F*&K GORE!

    Insured By COLT, Policy #.357M

    http://haydukesk5.coloradok5.com
     
  6. Logan

    Logan Registered Member

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    I'm still pretty new to the fullsize world, but I remember this discussion happening on offroad.com's Toyota board. The EGR keeps combustion temperatures down for emissions reasons, but the engines were actually designed with the lower internal temperatures in mind -- removing the valve apparently shortens the life of the engine by a large degree.

    No idea if this translates over to these trucks or not...

    -Al.
     
  7. Blazer79

    Blazer79 1/2 ton status

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    So what happens with the new crate engines with Vortec heads? Those don't have provisions for EGR valve. Will those engines have a shorter life? Personally, I don't think so, but correct me if I'm wrong.

    <font color=blue>//////
    http://blazer79.coloradok5.com
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  8. edeslaur

    edeslaur Registered Member

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    1) Engine sucks in air
    2) Fuels is injected (in this case) or drawn in through carb. Mix is ideal for air sucked in
    3) EGR opens and lets in exhaust gas which does not burn
    4) Less burn = less power = less heat generated

    To increase power, disconnect EGR valve. My Honda lost its flat spot at around 2800 when I did this and is noticeabley more zippy while still passing emissions (in this case).

    You get more heat as Logan pointed out, but this is an exacerbation of an existing problem on Toys since they already have a valve singeing problem on their V6 engines.

    Eric D
    88 K30
     
  9. Gopherkiller

    Gopherkiller 1/2 ton status

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    I was always under the understanding, that a properly working EGR gave you 1 to 2 more mpg.
     

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