Results 1 to 4 of 4

no fuel pressure

This is a discussion on no fuel pressure within the General Help forums, part of the LSx Technical Help Section category; is there a fuel relay and where would it be . the car started up this morning and ran for ...

  1. #1
    the cake is a lie twozs's Avatar
    Join Date
    Sep 2005
    Location
    hopewell jct, ny
    Posts
    489

    black 01 red 73
    01 z28 and 73 z28

    no fuel pressure

    is there a fuel relay and where would it be . the car started up this morning and ran for about 30 seconds and cut off . tryed to start it back up to no avail, cranks fine . so after finding out that my auto protection plan company is going through bankruptcy and ill have to pay up front. i notice that the fuel gauge reads empty .put gas in the car thinking its empty and still nothing. so im thinking that the gauge sender and pump have the same power source. when i turn the key to the on position i dont hear the pump pressure up the system and there is no pressure at the shrader valve on the rail. please any help beacause the car is in front of my garage with my other car in the garage and the dead car is on a hill si i cant even push it out of the way to get to my other car .

  2. #2
    Senior Member Orcus79's Avatar
    Join Date
    Feb 2006
    Location
    Canada
    Age
    37
    Posts
    1,346

    black
    2002 WS6

    I think but may be wrong, that the relay is in one of the boxes on the drivers fender.

  3. #3
    Member
    Join Date
    Apr 2007
    Location
    San Diego
    Posts
    177

    Red
    2002 T/A

    Quote Originally Posted by twozs View Post
    Is there a fuel relay and where would it be?
    Yes, under the hood next to the brake booster covered by a rectangular plastic lid. The lid should have a diagram to help you I.D. it. Try swapping out the fuel pump relay with another known good relay of the same type from that relay center.

    Quote Originally Posted by twozs View Post
    So I'm thinking that the gauge sender and pump have the same power source.
    No they have separate fuses.

    Quote Originally Posted by twozs View Post
    When I turn the key to the on position I don't hear the pump pressure up the system and there is no pressure at the schrader valve on the rail.
    Definitely sounds like an electrical problem (open circuit). Just remember the PCM supplies ground to the relay in order to activate the pump.

    P.S. Any recent work done to your car before this happened? I mean ANYTHING as unrelated as it may seem.

  4. #4
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Location
    Indy
    Posts
    6,712
    check the fuse, switch it out w the horn fuse. both 20 amps

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. LT1 fuel pressure
    By Bouvers in forum General Help
    Replies: 1
    Last Post: 03-10-2007, 09:56 PM
  2. Replies: 3
    Last Post: 10-02-2006, 06:23 PM
  3. motor hesitates aroung 2500rpm
    By Garry in forum Internal Engine
    Replies: 25
    Last Post: 06-19-2006, 08:27 AM
  4. Is my fuel pressure ok?
    By CKramer in forum General Help
    Replies: 1
    Last Post: 06-04-2006, 06:36 PM
  5. no fuel pressure...
    By lt4ever in forum LT1
    Replies: 4
    Last Post: 11-14-2005, 04:57 AM

Bookmarks

Posting Permissions

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