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failing injection pump

Discussion in '1982-Present GM Diesel' started by 6.2L Jimmy, Jan 22, 2002.

  1. 6.2L Jimmy

    6.2L Jimmy 1/2 ton status

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    Hi.

    Can anyone tell me the signs of a failing injection pump?
    Can changing all injectors make an injection pump fail quicker?
    I just changed all of my injectors.
    Somebody at a garage told me this and I found it pretty strange,I figured it would help if anything...
    Thanks in advance
    Mike.



    1989 GMC Jimmy 6.2L 4x4,1969 Camaro Z/28 502 C.I. B.B.C.
    BLOOD,SWEAT AND GEARS!
     
  2. Tybee

    Tybee 1/2 ton status

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    I dont know for sure but the I think the pressure an injector needs to pop decreases over time, and if your pump has high mileage it puts out less pressure. There for when you replace the injectors it would take more pressure to pop the injectors and with a worn pump its not creating enough pop off pressure. Hope this makes sense.

    1984 GMC Jimmy 379 diesel, 700R4, 3.73s, 31x10.50 x 15
     
  3. 6.2 man

    6.2 man 1/2 ton status Premium Member

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    Couldn't have said it better !!!
     
  4. 6.2L Jimmy

    6.2L Jimmy 1/2 ton status

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    Yep, I understood that one and thanks for the quick reply.
    I have to say this is THE best site I have ever seen.So informative and everybody seems to like to help.A real fountain of knowledge.

    Thanks again

    Mike

    1989 GMC Jimmy 6.2L 4x4,1969 Camaro Z/28 502 C.I. B.B.C.
    BLOOD,SWEAT AND GEARS!
     
  5. Tybee

    Tybee 1/2 ton status

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    no problem, glad I could help. I agree with you on this being the best site for information and help. [​IMG]

    1984 GMC Jimmy 379 diesel, 700R4, 3.73s, 31x10.50 x 15
     

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