6.2L Cylinder not firing..whats the cause?

Discussion in 'GM Diesel 6.2' started by Cruzer, Jul 27, 2005.

  1. Cruzer

    Cruzer Member

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    So what will cause a diesel cylinder not to fire.

    Glow plug(please explain) i thought they only ran when you started the truck up?
    Plugged injector
    bad valve???
    low compression?

    how can i check these easily?

    Glow plugs. I can pull one out and look at it?
    Injector?
    valve-pull the head?
    compression test....

    thanks for your help. I will try and play with it tonight and see what i come up with!

    Stew
     
  2. Brisk

    Brisk Well-Known Member

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    I am not sure if the 6.2 had injectors or used a throttle body type injection (I really have no idea). but if it does then that or a bad valve could be the culprit. try a compression test and a leak-down test and see what you come up with.

    good luck!

    EDIT: I just re-read your post, the glow plugs shouldnt cause this, but if you have never changed them then it wouldnt hurt to do it anyway.
     
    Last edited: Jul 27, 2005
  3. jac6695

    jac6695 Well-Known Member

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    I would do a compression test and maybe a leakdown test, and pull that injector and have it tested at a local diesel injection shop.
     
  4. Brisk

    Brisk Well-Known Member

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    Hey James long time no see. hows Virginia??
     

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