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.

94 TBI Is 14 PSI Fuel Presure to HIgh

Discussion in 'The Garage' started by stano, Nov 1, 2005.

  1. stano

    stano 1/2 ton status

    Joined:
    Jan 24, 2005
    Posts:
    130
    Likes Received:
    0
    Location:
    Iowa
    1994 C1500 5.7 with 700R4. Is the 14 PSI presure on the fuel line to high. I have a 1991 book and it say 9 to 13 PSI. So I am not sure about 1994.

    thank you stano
    87 K5
     
  2. HarryH3

    HarryH3 1 ton status Author

    Joined:
    May 31, 2000
    Posts:
    10,384
    Likes Received:
    2
    Location:
    Georgetown, TX
    Stock spec is 9-13, but some folks tweak them as high as 14 in search of a tad more performance.
     
  3. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

    Joined:
    Jun 23, 2000
    Posts:
    7,921
    Likes Received:
    331
    Location:
    Fort McMurray, Alberta
    14 PSI is perfect :)

    The regulator takes care of any excess pressure, and sends it back to the tank.
     
  4. vortec

    vortec 1/2 ton status

    Joined:
    Jul 22, 2004
    Posts:
    1,472
    Likes Received:
    0
    Location:
    fort worth, texas
    that's correct. 9-13 psi is the factory range. i wouldn't think 14 would be a problem as long as everything is in good shape. my 94 held just over 12psi, pretty steadily the one time i checked. and my fuel system has never had any issues. did you do the "quarter mod" to bump the pressure up a little? i thought about trying that, but i am reluctant to screw around with the regulator, since it's working well. swapping for an adjustable might be nice, though.
     
  5. stano

    stano 1/2 ton status

    Joined:
    Jan 24, 2005
    Posts:
    130
    Likes Received:
    0
    Location:
    Iowa
    thanks guys

    as far as the regulator being tampered with or adjusted, I am not sure.

    We checked it and read the 91 book and wanted more info.

    thank you stano
    87 K5
     

Share This Page