Results 1 to 3 of 3

Thread: 1998 Chevy 3500 6.5 injector pump leaking

  1. #1
    Join Date
    Apr 2021
    Location
    Vernon hill va
    Posts
    2

    Default 1998 Chevy 3500 6.5 injector pump leaking

    My 3500 is leaking fuel out the front hole of the injector pump. Is there any way to fix it or do I just need to replace the pump

  2. #2
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,573

    Default

    Welcome aboard!

    If fuel is leaking from the weep hole between the mounting flange and the pump, the internal (rear) shaft seal has failed. The seal is replaceable, but requires disassembling the pump. If the pump is 100% otherwise, it would be worthwhile to have the seal replaced by a Stanadyne tech, at a fraction of the cost of an overhaul or reman. Your question may be best answered at a certified Stanadyne shop, by a certified Stanadyne tech. They can begin by testing the pump, to determine whether it's worth messing with.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  3. #3
    Join Date
    Apr 2021
    Location
    Vernon hill va
    Posts
    2

    Default

    Quote Originally Posted by DmaxMaverick View Post
    Welcome aboard!

    If fuel is leaking from the weep hole between the mounting flange and the pump, the internal (rear) shaft seal has failed. The seal is replaceable, but requires disassembling the pump. If the pump is 100% otherwise, it would be worthwhile to have the seal replaced by a Stanadyne tech, at a fraction of the cost of an overhaul or reman. Your question may be best answered at a certified Stanadyne shop, by a certified Stanadyne tech. They can begin by testing the pump, to determine whether it's worth messing with.
    Thanks for the info. I'll check and see if there's any shops around my area that might be able to test it and replace the seal

Similar Threads

  1. 1998 Chevy 3500 1 Ton diesel stalling
    By ync in forum 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance
    Replies: 4
    Last Post: 01-19-2013, 13:29
  2. 1998 Chevy 3500 Crew Cab w/6.5L
    By M Williams in forum 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance
    Replies: 4
    Last Post: 09-27-2012, 07:25
  3. Bad Injector Pump? 93' 3500
    By spivy30 in forum 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance
    Replies: 7
    Last Post: 12-02-2011, 10:49
  4. 1998 gmc 3500 6.5 td bucking
    By tltowing in forum 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance
    Replies: 3
    Last Post: 11-27-2007, 15:07
  5. 1998 3500 6.5 Turbo
    By Calvin 60 in forum 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance
    Replies: 2
    Last Post: 02-26-2004, 23:01

Tags for this Thread

Posting Permissions

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