Results 1 to 7 of 7

Thread: 1998 ford ranger low fuel pump pressure

  1. #1
    Junior Member
    Join Date
    Dec 2011
    Location
    ANTIGUA,WEST INDIES
    Posts
    3

    1998 ford ranger low fuel pump pressure

    Does anyone know what pressure should be at the injector rail of the 1998 ford ranger with a 2.5litre engine?

  2. #2
    Senior Moderator chevychase's Avatar
    Join Date
    Oct 2010
    Location
    truck forum .org
    Posts
    15,593
    Blog Entries
    2
    Should be at least 64 psi..and hold this pressure

    Gitter done have fun. Running on empty...running blind...running behind.....

  3. #3
    Junior Member
    Join Date
    Dec 2011
    Location
    ANTIGUA,WEST INDIES
    Posts
    3
    what can cause the engine to idle very eratically and to have low power?

  4. #4
    Senior Moderator chevychase's Avatar
    Join Date
    Oct 2010
    Location
    truck forum .org
    Posts
    15,593
    Blog Entries
    2
    Are you getting a service engine light? Could be many things ..electrical or fuel.

    Gitter done have fun. Running on empty...running blind...running behind.....

  5. #5
    Junior Member
    Join Date
    Dec 2011
    Location
    ANTIGUA,WEST INDIES
    Posts
    3
    no im not getting a service engine light

  6. #6
    Senior Moderator chevychase's Avatar
    Join Date
    Oct 2010
    Location
    truck forum .org
    Posts
    15,593
    Blog Entries
    2
    Seems light ought to be on...does it work ? When you turn key on..does light come on then go out?
    This is a 4 cylinder try changing the plugs..if just one is bad will make engine erratic.and not have power.
    Could be a plug wire..check fuel filter. without a check light hard to diagnose.

    Gitter done have fun. Running on empty...running blind...running behind.....

  7. #7
    Junior Member
    Join Date
    Apr 2012
    Posts
    1
    Hi sir! i have a problem with my fuel pump.. I replaced my fuel pump, sending, unit and regulator, after new oem pump installed
    and tank cleaned of severe filth the operating pressure at idle is 27psi and 26 psi under load of 2000 RPMs or higher. New fuel filter only ran for 1 or 2 tanks under filthy gas tank (previous filter was clogged enough to block pressure to 12psi on key flick) and pressure on key flick comes up to 38 psi before starting engine. Spec operating range is 30 - 45psi.

    Since the operating pressure has gone down since new ford truck parts has been installed and given all the new fuel system items what could this mean is wrong?

Similar Threads

  1. 1998 1500 chevy - fuel pump problems
    By newfiemom16 in forum Chevy Truck Forum
    Replies: 4
    Last Post: 06-09-2011, 05:42 PM
  2. fuel pump pressure questions
    By sbc 350 in forum Chevy Truck Forum
    Replies: 5
    Last Post: 09-22-2010, 04:46 PM
  3. Fuel pump pressure?
    By partsman in forum GMC Truck Forum
    Replies: 12
    Last Post: 12-07-2009, 12:04 AM
  4. 1998 Ford Ranger won't start in Park
    By Steve g. in forum Ford Truck Forum
    Replies: 9
    Last Post: 08-29-2009, 01:49 PM
  5. 1998 V6 chevy S10 fuel pressure regulator diagnosis
    By STRAYDOG in forum Chevy Truck Forum
    Replies: 0
    Last Post: 10-21-2006, 08:18 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •