HT4100 4.1, 4.5, 4.9 - Page 5
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HT4100 4.1, 4.5, 4.9 in Cadillac forums : Cadillac Owners Forum, This forum is to discuss the newer aluminum block Cadillac engines.
  1. Sticky Thread Sticky: OBD I codes for 4.x Engines

    Started by DaveSmed‎, 09-20-04 01:50 AM
    • Replies: 0
    • Views: 48,125
    09-20-04, 01:50 AM Go to last post
  1. anyone need new pistons?

    Started by eldorado_sean‎, 05-22-14 09:44 PM
    • Replies: 0
    • Views: 387
    05-22-14, 09:44 PM Go to last post
  2. 84 Seville headgasket or?

    Started by gm-addict‎, 04-07-14 01:18 PM
    • Replies: 4
    • Views: 596
    05-17-14, 03:05 AM Go to last post
  3. Timing Issue

    Started by omston‎, 05-05-14 11:01 PM
    • Replies: 10
    • Views: 904
    05-13-14, 10:39 AM Go to last post
  4. Crap...sludge under oil filler cap...

    Started by delerium75‎, 05-09-14 01:41 AM
    • Replies: 0
    • Views: 503
    05-09-14, 01:41 AM Go to last post
  5. Idle Control

    Started by Ware0508‎, 04-24-14 02:47 PM
    • Replies: 3
    • Views: 475
    04-25-14, 10:58 AM Go to last post
  6. HT4100 82 Seville engine replacement options

    Started by DPD‎, 04-19-14 08:54 PM
    • Replies: 2
    • Views: 608
    DPD
    04-24-14, 01:32 PM Go to last post
  7. Allante intake

    Started by stoveguyy‎, 04-19-14 09:55 PM
    • Replies: 3
    • Views: 470
    04-23-14, 08:56 PM Go to last post
  8. FPR and Injectors 4.9

    Started by zentrade‎, 02-27-14 09:19 PM
    • Replies: 1
    • Views: 581
    04-19-14, 09:53 PM Go to last post
  9. HT4100 Intake Gasket Question

    Started by JamesG602‎, 02-19-14 09:27 PM
    • Replies: 5
    • Views: 1,246
    04-14-14, 03:19 PM Go to last post
  10. 1985 Eldorado 4100 engine swap

    Started by mrboots54‎, 08-26-09 09:18 AM
    • Replies: 11
    • Views: 10,797
    04-11-14, 03:07 PM Go to last post
  11. Service A/c Light 4.9 '93 Sedan...

    Started by GEE_RIDE‎, 04-08-14 08:17 PM
    • Replies: 2
    • Views: 526
    04-09-14, 11:49 AM Go to last post
  12. 4100 HT rocker arm bridge

    Started by nizki1981‎, 03-29-14 03:29 AM
    • Replies: 2
    • Views: 1,301
    04-02-14, 03:53 PM Go to last post
  13. 88 4.5 has no power and wants to die.

    Started by haroldthedude‎, 03-10-14 11:13 AM
    • Replies: 9
    • Views: 679
    03-14-14, 09:19 AM Go to last post
  14. Question need some help with my 1994 Deville 4.9L v8

    Started by Cadillac210‎, 09-06-11 03:05 PM
    • Replies: 4
    • Views: 3,102
    03-05-14, 08:43 PM Go to last post
  15. Coolant guage sensor location help

    Started by omston‎, 02-14-14 10:47 PM
    • Replies: 0
    • Views: 415
    02-14-14, 10:47 PM Go to last post
  16. 4.9L Main Bearing Thump

    Started by bcpape‎, 05-08-09 03:26 PM
    2 Pages
    1 2
    • Replies: 27
    • Views: 5,646
    02-13-14, 09:45 AM Go to last post
  17. Angry E49 code and possible solutions.

    Started by Forgoten214‎, 11-03-10 06:34 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 6,295
    02-08-14, 12:34 AM Go to last post
  18. 93 Deville main bearing thump

    Started by mike93‎, 12-18-09 07:20 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 5,777
    02-01-14, 11:11 AM Go to last post
  19. Seville Swap: from 83 HT4100 to 81 368

    Started by Cerbera‎, 07-27-11 02:11 PM
    • Replies: 7
    • Views: 2,745
    02-01-14, 10:21 AM Go to last post
  20. Question gear selector fault

    Started by doug95‎, 01-29-14 05:51 PM
    • Replies: 0
    • Views: 506
    01-29-14, 05:51 PM Go to last post
  21. No vacuum to EGR valve ... 4.9 engine

    Started by runforrest1‎, 01-11-14 04:43 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,728
    01-28-14, 03:28 AM Go to last post
  22. At what temp should the radiator fan come on?

    Started by runforrest1‎, 01-26-14 11:43 PM
    • Replies: 1
    • Views: 421
    01-27-14, 11:05 AM Go to last post
    • Replies: 7
    • Views: 1,858
    01-27-14, 02:38 AM Go to last post
    • Replies: 5
    • Views: 603
    01-25-14, 10:57 PM Go to last post
  23. Need Help with timing/tune-up on 84 Cadillac Deville HT4100

    Started by henrydean40‎, 04-21-11 04:17 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 9,180
    01-25-14, 12:05 PM Go to last post

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