Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

question re: priming fuel system.

Discussion in '1982-Present GM Diesel' started by colbystephens, Feb 17, 2007.

  1. colbystephens

    colbystephens 1 ton status GMOTM Winner

    Joined:
    Feb 24, 2005
    Posts:
    10,924
    Likes Received:
    20
    Location:
    Oregon
    when priming the system, everything i've read says disconnect the injector lines and remove the glow plugs and disconnect the pink wire from the IP. why do we disconnect the pink wire - what does that do?
     
  2. bear76

    bear76 1/2 ton status

    Joined:
    Oct 16, 2005
    Posts:
    1,065
    Likes Received:
    0
    Location:
    here
    The pink wire is power for the IP. When I primed mine I just cracked open 2 injectors and turned it over in short bursts, about 5-6 seconds each. It took me about 8 cycles to get it flowing. Started right up.
     
  3. colbystephens

    colbystephens 1 ton status GMOTM Winner

    Joined:
    Feb 24, 2005
    Posts:
    10,924
    Likes Received:
    20
    Location:
    Oregon
    yeah, i'm familiar w/ the function of the pink wire, just want to know why everyone says to disconnect it while priming the system.
     
  4. bear76

    bear76 1/2 ton status

    Joined:
    Oct 16, 2005
    Posts:
    1,065
    Likes Received:
    0
    Location:
    here
    I would guess you wouldn't want the IP pumping dry. So let the mech. pump push fuel into it for lube I guess.
     
  5. BKinzey

    BKinzey 1/2 ton status

    Joined:
    Jan 13, 2006
    Posts:
    3,145
    Likes Received:
    0
    Location:
    Hollywierd, CA
    DING DING DING

    Johnny Tell Him What He's Won!:bow::bow::bow:
     
  6. cegusman

    cegusman 3/4 ton status

    Joined:
    Apr 25, 2001
    Posts:
    6,793
    Likes Received:
    0
    Location:
    Houston/Katy, Tx
    You only disconnect the pink wire to get fuel to the injector pump. Should only take 2-3 10 seconds of cranking. Like mentioned above it is to prevent the pump from running dry.
     
  7. colbystephens

    colbystephens 1 ton status GMOTM Winner

    Joined:
    Feb 24, 2005
    Posts:
    10,924
    Likes Received:
    20
    Location:
    Oregon
    i gotcha. thanks.
     

Share This Page