HT4100 4.1, 4.5, 4.9 - Page 121
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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: Safety Safety Safety !

    Started by Stoneage_Caddy‎, 06-11-04 06:53 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 13,454
    12-15-13, 10:54 AM Go to last post
  2. Sticky Thread Sticky: The "4.9 liter turbocharger, stage 1" thread.

    Started by illumina‎, 03-12-05 12:05 AM
    16 Pages
    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
    • Replies: 238
    • Views: 90,182
    02-24-11, 01:56 PM Go to last post
  3. Sticky Thread Sticky: OBD I codes for 4.x Engines

    Started by DaveSmed‎, 09-20-04 01:50 AM
    • Replies: 0
    • Views: 41,528
    09-20-04, 01:50 AM Go to last post
    • Replies: 4
    • Views: 931
    03-06-05, 10:47 PM Go to last post
  1. Startup problem

    Started by ja killz‎, 03-06-05 10:57 AM
    • Replies: 7
    • Views: 548
    03-06-05, 10:06 PM Go to last post
  2. Piston Rings

    Started by Spyderb‎, 03-06-05 11:51 AM
    • Replies: 1
    • Views: 390
    03-06-05, 04:27 PM Go to last post
  3. Question Intake on a Deville...

    Started by soy_chingon13‎, 03-05-05 10:30 PM
    • Replies: 3
    • Views: 573
    03-06-05, 11:06 AM Go to last post
  4. Delco vs. Others

    Started by dabeastro1‎, 03-04-05 12:52 AM
    • Replies: 5
    • Views: 526
    Kev
    03-05-05, 12:43 PM Go to last post
  5. Unhappy 4.9 knocks under load

    Started by go4it‎, 12-16-03 12:56 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 4,771
    03-05-05, 01:39 AM Go to last post
  6. Exclamation Will a HT4100 go into an 88 Deville?

    Started by Fleetwoodmatt‎, 03-02-05 01:12 AM
    • Replies: 5
    • Views: 500
    03-04-05, 02:53 AM Go to last post
  7. Engine Swap

    Started by Fleetwoodmatt‎, 03-01-05 01:45 PM
    • Replies: 1
    • Views: 459
    03-03-05, 10:52 PM Go to last post
  8. 90 Deville-surging, missing, after it is warmed up

    Started by youbetcha77‎, 01-31-05 09:45 AM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,361
    03-03-05, 01:52 PM Go to last post
  9. Accel Fuel Injectors

    Started by Trench‎, 01-29-05 05:38 AM
    • Replies: 11
    • Views: 916
    03-03-05, 01:13 AM Go to last post
  10. A little oil here and a Little oil there

    Started by youbetcha77‎, 03-02-05 12:42 AM
    • Replies: 3
    • Views: 342
    03-03-05, 12:42 AM Go to last post
  11. How do you advance timing?

    Started by Mahalaleel‎, 03-02-05 12:12 AM
    • Replies: 4
    • Views: 958
    03-02-05, 10:34 PM Go to last post
  12. Performance Mufflers for 4.9??

    Started by I~LUV~Caddys8792‎, 02-22-05 06:00 PM
    • Replies: 12
    • Views: 756
    03-02-05, 01:59 AM Go to last post
  13. Ticking

    Started by Ghost C‎, 03-01-05 09:22 PM
    • Replies: 1
    • Views: 381
    03-01-05, 11:11 PM Go to last post
  14. Got a Reply! on HT4100 TO 4500 Conversion!

    Started by ForrestAMDXP‎, 02-23-05 03:54 PM
    • Replies: 1
    • Views: 887
    03-01-05, 06:38 PM Go to last post
  15. fuel system??

    Started by SilverDeville90‎, 02-26-05 01:37 PM
    • Replies: 4
    • Views: 397
    03-01-05, 05:55 PM Go to last post
  16. ISC RPM out of Range (P030)

    Started by caddydaddy‎, 01-19-05 11:15 AM
    • Replies: 3
    • Views: 2,111
    03-01-05, 10:01 AM Go to last post
  17. 4.5 tbi- performance stuff??

    Started by punchyponcho‎, 02-16-05 01:55 AM
    • Replies: 8
    • Views: 1,244
    02-28-05, 07:00 PM Go to last post
  18. Unhappy Engine miss at highway speeds.

    Started by davidjp3‎, 02-18-05 12:01 AM
    • Replies: 3
    • Views: 931
    02-28-05, 12:30 AM Go to last post
  19. '90 DeVille 4.5L "hunts" for curb idle

    Started by mdogg1950‎, 02-27-05 11:28 PM
    • Replies: 0
    • Views: 538
    02-27-05, 11:28 PM Go to last post
  20. Trouble with O2 Sensor

    Started by Fleetwood Blaq‎, 02-24-05 11:30 PM
    • Replies: 2
    • Views: 463
    02-27-05, 01:24 PM Go to last post
  21. Thumbs up OIL Leak??????

    Started by 94caddeville‎, 02-03-05 07:36 PM
    • Replies: 2
    • Views: 493
    02-26-05, 08:24 PM Go to last post
  22. Oil Light

    Started by D'Elegance‎, 02-24-05 08:22 PM
    • Replies: 5
    • Views: 530
    02-26-05, 08:15 PM Go to last post
  23. collectors,bbob anyone,long term storage

    Started by CadiJeff‎, 02-25-05 04:05 AM
    • Replies: 9
    • Views: 482
    02-26-05, 07:08 PM Go to last post
    • Replies: 2
    • Views: 492
    02-25-05, 10:19 PM Go to last post

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