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Thread: DIY - Injector Pump Replacement

  1. #1
    Join Date
    Jun 2020
    Location
    Spokane
    Posts
    8

    Default DIY - Injector Pump Replacement

    OK, I have decided to do it. After watching several YouTube videos, and reading some of the posts on here I am going for it. I do have one question, is it a good idea to replace the injectors at the same time? That is an additional $300 i would rather not spend, but if it necessary?

  2. #2
    Join Date
    Jan 2001
    Location
    New Hampshire - Live Free or Die
    Posts
    6,057

    Default

    A little background information might be helpful.
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

  3. #3
    Join Date
    Apr 2001
    Location
    Newberg Oregon
    Posts
    12,282

    Default

    At least check the pop pressures and spray pattern

    You SHOULD have all the injectors POP pressures very close to one another.

    If you have any that are really low and peeing a stream rather than giving a nice cone of mist this is not good.

    Getting a good set of squirts in the engine can make a world of difference in STARTING and overall operation.

    Have fun....
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
    THIS IS BOW TIE COUNTRY

  4. #4
    Join Date
    Jun 2020
    Location
    Spokane
    Posts
    8

    Default

    Robyn, I am such a newb, sorry. So how would I go about checking the pop pressure?

  5. #5
    Join Date
    Dec 2003
    Location
    Yukon Canada
    Posts
    1,612

    Default

    Why are you changing the pump?
    What are you changing the pump on?
    Are you sure you really need to change the pump?
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews

  6. #6
    Join Date
    Jan 2001
    Location
    Knoxville,Tennessee
    Posts
    2,639

    Default

    Scabby if your total DIY there was an article on TDP on how to build your own injector test set up using a grease gun and gauge to test pop pressure.
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government."
    -Patrick Henry


    A5150nut
    2006 K3500 D/A
    94 6.5 4x4 5spd Sold

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