Thanks Thanks:  0
Likes Likes:  2
Page 2 of 4 FirstFirst 1234 LastLast
Results 11 to 20 of 38

Thread: Fuel pressure constantly dropping???

  1. Top Of Page | #11
    Old & Grumpy! Polaraco's Avatar

    User Info Menu

    That is what I said to Alex. But there was a factory mod done after the fact to replace the tank unit with a pump.

    Sorry I justify what I say


    2003- 3500 RWD Automatic.
    S & B intake, BD Intercooler, Pusher Air Horn, MM3 Double R Tuning, Turbo Timer, electric Flex-a-lite fans, FASS 95,
    50 HP tips, upgrade to 351 turbo, 3.42 gears, Twin air compressors, air bags, Remote dual oil filters, Hellwig sway bar, Front Winch. Home made Fuel Heater, BD Exhaust brake with Torque Lock. Tons of TLC

  2. Top Of Page | #12
    Instagram Manager IG Operations's Avatar

    User Info Menu

    It's cool. We're funny drop the tank. See what's going on

    Tag us @ #igotacummins_com to have your photos reposted.

  3. Top Of Page | #13
    Old & Grumpy! Polaraco's Avatar

    User Info Menu

    Maybe it depends on the factory it was made in


    2003- 3500 RWD Automatic.
    S & B intake, BD Intercooler, Pusher Air Horn, MM3 Double R Tuning, Turbo Timer, electric Flex-a-lite fans, FASS 95,
    50 HP tips, upgrade to 351 turbo, 3.42 gears, Twin air compressors, air bags, Remote dual oil filters, Hellwig sway bar, Front Winch. Home made Fuel Heater, BD Exhaust brake with Torque Lock. Tons of TLC

  4. Top Of Page | #14
    Basic Member

    User Info Menu

    Pretty sure all lift pumps were block mounted from the factory on VP trucks. When the VP went out dealers would often replace it with an in-tank pump.


  5. Top Of Page | #15
    Basic Member

    User Info Menu

    Quote Originally Posted by Speedy-J View Post
    Ok so my buddies 2000 2500 has a fuel pressure gauge. He just picked it up 3 weeks ago. It's been fine until 2 days ago, his truck started stalling. As his fuel pressure went from 15 to 2psi under load. Unless he is only idling the fp sticks around 5psi. Sometimes lower. He's replaced the lift pump, fuel filter and filled his tank. And it still does it. Any possibilities of what the problem could be
    Overflow valve stuck open?


  6. Top Of Page | #16
    Instagram Manager IG Operations's Avatar

    User Info Menu

    He ordered an airdog pump to see if that helps. I suggested a cracked draw tube. It works fine when he tops his tank off. He's waiting for the pump. Should be here today. Ill keep yinz in the loop

    Tag us @ #igotacummins_com to have your photos reposted.

  7. Top Of Page | #17
    Basic Member

    User Info Menu

    Quote Originally Posted by Speedy-J View Post
    He ordered an airdog pump to see if that helps. I suggested a cracked draw tube. It works fine when he tops his tank off. He's waiting for the pump. Should be here today. Ill keep yinz in the loop
    100 or 150? Vulcan's drawstraws are quality pieces


  8. Top Of Page | #18
    Old & Grumpy! Polaraco's Avatar

    User Info Menu

    Air Dog. Ugh


    2003- 3500 RWD Automatic.
    S & B intake, BD Intercooler, Pusher Air Horn, MM3 Double R Tuning, Turbo Timer, electric Flex-a-lite fans, FASS 95,
    50 HP tips, upgrade to 351 turbo, 3.42 gears, Twin air compressors, air bags, Remote dual oil filters, Hellwig sway bar, Front Winch. Home made Fuel Heater, BD Exhaust brake with Torque Lock. Tons of TLC

  9. Top Of Page | #19
    Instagram Manager IG Operations's Avatar

    User Info Menu

    Never mind. He got the raptor 100. It's dropping pressure still. It'll idle 27psi with the raptor for about 20 seconds and the. It dropped to 5 just idleing. He put on a new filters. New fittings. New supply lines.

    Tag us @ #igotacummins_com to have your photos reposted.

  10. Top Of Page | #20
    Instagram Manager IG Operations's Avatar

    User Info Menu

    And how can he test if the overflow is stuck open

    Tag us @ #igotacummins_com to have your photos reposted.

Page 2 of 4 FirstFirst 1234 LastLast

Posting Permissions

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