Threads 1 to 18 of 18

Forum: Duramax 6600

Welcome to the Internet's first Duramax 6600 diesel discussion forum for the LB7, LLY, LBZ, LMM, LML, LGH & L5P RPO code engines. Tips on performance, fuel economy, troubleshooting and more.

  1. Sticky Thread Sticky: LBZ Fuel Mileage

    Started by Dannyboy, 03-10-2006 15:46
    9 Pages
    1 2 3 ... 9
    • Replies: 167
    • Views: 168,567
    10-22-2022, 07:09 Go to last post
    • Replies: 5
    • Views: 29,387
    06-03-2022, 09:59 Go to last post
  2. Sticky Thread Sticky: High Miles contest!

    Started by More Power, 11-29-2005 07:23
    6 Pages
    1 2 3 ... 6
    • Replies: 103
    • Views: 109,553
    12-07-2021, 13:54 Go to last post
  3. Sticky Thread Sticky: Dexcool vs. other coolants

    Started by TomJ01, 12-01-2010 16:01
    • Replies: 14
    • Views: 75,912
    10-28-2020, 13:47 Go to last post
  4. Sticky Thread Sticky: Additional fuel filtration / injector replacement poll

    Started by Mark Rinker, 08-16-2008 09:10
    2 Pages
    1 2
    • Replies: 29
    • Views: 40,889
    10-04-2020, 03:07 Go to last post
  5. Sticky Thread Sticky: Gasoline in my 6.6 Duramax

    Started by Javy, 06-01-2006 18:36
    2 Pages
    1 2
    • Replies: 32
    • Views: 79,884
    05-21-2020, 11:15 Go to last post
  6. Poll Sticky Thread Sticky: Poll: 2004.5+ LLY Duramax Fuel Economy Poll

    Started by More Power, 12-31-2004 14:27
    6 Pages
    1 2 3 ... 6
    • Replies: 117
    • Views: 116,135
    10-29-2018, 12:13 Go to last post
  7. Sticky Thread Sticky: P0087 fuel rail pressure low limp under high loads

    Started by Mark Rinker, 08-14-2009 20:26
    12 Pages
    1 2 3 ... 12
    • Replies: 223
    • Views: 304,643
    03-18-2018, 04:55 Go to last post
  8. Sticky Thread Sticky: 2001 LB7 fuel system/limp mode problem SOLVED

    Started by maverick2, 04-09-2010 12:46
    • Replies: 18
    • Views: 66,755
    10-23-2017, 07:57 Go to last post
  9. Sticky Thread Sticky: DTC Codes-Definitions

    Started by MAV, 09-27-2003 06:24
    • Replies: 7
    • Views: 45,168
    09-07-2017, 16:45 Go to last post
  10. Arrow Sticky Thread Sticky: LML Fuel Economy

    Started by cowboywildbill, 04-29-2011 06:46
    • Replies: 18
    • Views: 47,505
    07-13-2016, 07:27 Go to last post
  11. Poll Sticky Thread Sticky: Poll: 2001-early 2004 LB7 Duramax Fuel Economy Poll

    Started by More Power, 12-31-2004 14:35
    6 Pages
    1 2 3 ... 6
    • Replies: 113
    • Views: 189,468
    01-19-2016, 14:50 Go to last post
  12. Arrow Sticky Thread Sticky: LMM Fuel Economy

    Started by More Power, 04-11-2007 22:20
    5 Pages
    1 2 3 ... 5
    • Replies: 98
    • Views: 126,381
    01-24-2013, 06:38 Go to last post
  13. Sticky Thread Sticky: Maximizing LLY fuel mileage

    Started by Stlheadake, 05-17-2006 11:32
    3 Pages
    1 2 3
    • Replies: 58
    • Views: 79,746
    11-29-2012, 16:34 Go to last post
  14. Sticky Thread Sticky: New to Forum: How to tell type of Engine

    Started by bradjedis, 06-18-2007 10:41
    • Replies: 11
    • Views: 43,128
    03-23-2010, 10:03 Go to last post
  15. Thumbs up Sticky Thread Sticky: D Max Express Fuel Mileage

    Started by wurk_truk, 04-28-2006 21:40
    • Replies: 10
    • Views: 45,569
    06-21-2008, 16:16 Go to last post
  16. Sticky Thread Sticky: Postings in the 'Duramax 6600' forum

    Started by Mark Rinker, 08-03-2007 07:58
    • Replies: 0
    • Views: 14,185
    08-03-2007, 07:58 Go to last post
  1. guards for under engine & transmission

    Started by spongebob, 01-11-2023 15:51
    • Replies: 5
    • Views: 102
    01-25-2023, 14:45 Go to last post
  2. Engine block heater…

    Started by spongebob, 12-18-2022 05:37
    • Replies: 15
    • Views: 312
    12-31-2022, 09:06 Go to last post
  3. Battery time for the 2001 DMax

    Started by Yukon6.2, 09-24-2022 09:23
    • Replies: 10
    • Views: 428
    11-04-2022, 10:01 Go to last post
  4. Shift lever is out of wack

    Started by spongebob, 10-28-2022 06:12
    2 Pages
    1 2
    • Replies: 22
    • Views: 525
    11-01-2022, 10:19 Go to last post
  5. LED day light running lights

    Started by spongebob, 10-22-2022 05:31
    • Replies: 2
    • Views: 161
    10-22-2022, 14:33 Go to last post
  6. Engine replacement thoughts

    Started by spongebob, 01-16-2022 12:59
    • Replies: 8
    • Views: 834
    09-29-2022, 13:36 Go to last post
  7. Angry Permanent DTC- how they are cleared

    Started by chessy56, 07-10-2022 09:29
    • Replies: 1
    • Views: 275
    09-27-2022, 10:18 Go to last post
  8. Replace fuel filter now no start

    Started by gbeaird, 06-25-2022 15:56
    2 Pages
    1 2
    • Replies: 39
    • Views: 1,720
    09-04-2022, 13:29 Go to last post
  9. Thumbs up Duramax Suburban

    Started by More Power, 08-29-2022 10:20
    • Replies: 1
    • Views: 204
    08-29-2022, 11:54 Go to last post
  10. P0674 Glow plugs

    Started by a5150nut, 05-16-2022 17:18
    • Replies: 10
    • Views: 735
    08-11-2022, 12:42 Go to last post
  11. Wink Duramax Head Gasket Replacement

    Started by More Power, 05-31-2021 06:10
    6 Pages
    1 2 3 ... 6
    duramax, head gasket replacement
    • Replies: 118
    • Views: 2,496
    07-29-2022, 08:39 Go to last post
  12. P040B/P041B, EGR circuit

    Started by chessy56, 05-27-2022 19:52
    • Replies: 1
    • Views: 301
    05-27-2022, 20:33 Go to last post
  13. Scan Tools

    Started by johnanc, 08-12-2021 00:17
    • Replies: 2
    • Views: 729
    05-06-2022, 09:57 Go to last post
  14. 2017 l5p: P0204, p0300

    Started by chessy56, 03-16-2022 21:26
    • Replies: 8
    • Views: 846
    03-31-2022, 10:22 Go to last post
  15. I keep replacing this latch..

    Started by spongebob, 03-24-2022 17:35
    • Replies: 2
    • Views: 441
    03-29-2022, 14:53 Go to last post
  16. Surging

    Started by 51Hunter, 01-20-2022 11:20
    • Replies: 14
    • Views: 996
    03-22-2022, 15:10 Go to last post
  17. 2007 NBS 3500HD No start , no crank

    Started by chambie, 02-12-2022 07:33
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,258
    03-01-2022, 10:08 Go to last post
    • Replies: 5
    • Views: 597
    02-10-2022, 14:54 Go to last post

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