HT4100 4.1, 4.5, 4.9 - Page 14
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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: 13,564
    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: 90,962
    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: 41,855
    09-20-04, 01:50 AM Go to last post
  1. thinking about getting mods on 4.5

    Started by Deville4.5‎, 04-20-11 06:04 PM
    • Replies: 7
    • Views: 1,486
    04-23-11, 01:25 AM Go to last post
  2. 4.1L Idle Speed Issues

    Started by TheRedSharon‎, 01-13-11 10:14 PM
    • Replies: 11
    • Views: 1,671
    04-22-11, 12:25 PM Go to last post
  3. Question Transmission acting funny

    Started by 83CADMAN‎, 06-21-10 06:59 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 2,168
    04-21-11, 01:51 PM Go to last post
  4. More HT4100 Tips

    Started by awadecki‎, 12-01-07 10:22 PM
    • Replies: 13
    • Views: 1,947
    04-21-11, 04:33 AM Go to last post
  5. 4.9 Individual Throttle Body project

    Started by Ghost C‎, 03-04-11 10:14 PM
    3 Pages
    1 2 3
    • Replies: 37
    • Views: 4,967
    04-20-11, 09:58 PM Go to last post
  6. Vapor Canister Filter

    Started by Cristofo‎, 04-15-11 10:58 PM
    • Replies: 1
    • Views: 2,082
    04-16-11, 12:40 AM Go to last post
  7. Engine Swap Process

    Started by Cristofo‎, 03-07-11 09:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 74
    • Views: 3,997
    04-06-11, 03:14 PM Go to last post
  8. Question Deville 4.9 Intake Mods?

    Started by SamB‎, 10-09-03 07:32 AM
    • Replies: 8
    • Views: 3,807
    04-02-11, 04:05 AM Go to last post
  9. Cold Air Intake?

    Started by Forgoten214‎, 11-19-10 06:53 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 2,894
    03-30-11, 09:31 PM Go to last post
  10. significant improvements in 94/95 4.9?

    Started by ehall‎, 03-27-11 02:33 PM
    • Replies: 2
    • Views: 505
    03-27-11, 07:16 PM Go to last post
  11. 4.9ltr Northstar performance?

    Started by zweekerboy‎, 08-12-07 12:14 AM
    2 Pages
    1 2
    • Replies: 25
    • Views: 3,222
    03-26-11, 08:53 AM Go to last post
  12. 1986 cadillac Stalling up hills, need help ASAP

    Started by caddeville‎, 01-12-08 06:30 PM
    • Replies: 5
    • Views: 711
    03-16-11, 05:32 AM Go to last post
  13. source for 4.x cylinder sleeves

    Started by warlord‎, 03-10-11 02:18 PM
    • Replies: 0
    • Views: 964
    03-10-11, 02:18 PM Go to last post
  14. 4.9 running rough after spark plug change Help!

    Started by Keilyn STS‎, 02-12-11 06:02 PM
    • Replies: 12
    • Views: 4,253
    03-05-11, 07:04 PM Go to last post
  15. Disributor slop question

    Started by Marcelovee‎, 10-10-10 10:32 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,521
    03-05-11, 06:38 PM Go to last post
    • Replies: 1
    • Views: 648
    03-02-11, 11:04 AM Go to last post
  16. Falling MPG - 1990 Deville/Fleetwood

    Started by caddynewby‎, 02-25-11 06:25 PM
    • Replies: 9
    • Views: 1,231
    03-01-11, 09:38 AM Go to last post
  17. 96 deville alternator

    Started by 96devilled‎, 02-27-11 06:32 PM
    • Replies: 1
    • Views: 828
    02-28-11, 09:48 PM Go to last post
  18. A/C Repair

    Started by tallpat‎, 02-16-11 08:50 PM
    • Replies: 2
    • Views: 727
    02-20-11, 10:28 PM Go to last post
  19. Heater Core Replace BRRR COLD!

    Started by nycnftm‎, 12-06-10 12:03 AM
    • Replies: 11
    • Views: 2,129
    02-18-11, 04:23 PM Go to last post
  20. 4.5 carb and distributor conversion

    Started by sut195‎, 02-17-11 12:50 PM
    • Replies: 3
    • Views: 1,381
    02-18-11, 12:12 PM Go to last post
  21. 4.9 Horrible Idle

    Started by Enigmaticwraith‎, 01-24-11 03:54 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 1,725
    02-07-11, 08:01 PM Go to last post
    • Replies: 5
    • Views: 1,439
    02-03-11, 08:42 PM Go to last post
  22. Performance?

    Started by 87allante4.9swap‎, 05-27-09 08:37 PM
    • Replies: 12
    • Views: 1,278
    01-29-11, 07:12 PM Go to last post
  23. Talking Whats The AVG MPG Readout for this forum

    Started by rlowe228‎, 04-22-05 12:42 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 1,828
    01-28-11, 07:55 PM Go to last post

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