HT4100 4.1, 4.5, 4.9 - Page 12
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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 07:53 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 13,944
    12-15-13, 11:54 AM Go to last post
  2. Sticky Thread Sticky: The "4.9 liter turbocharger, stage 1" thread.

    Started by illumina‎, 03-12-05 01:05 AM
    16 Pages
    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
    • Replies: 238
    • Views: 93,727
    02-24-11, 02:56 PM Go to last post
  3. Sticky Thread Sticky: OBD I codes for 4.x Engines

    Started by DaveSmed‎, 09-20-04 02:50 AM
    • Replies: 0
    • Views: 43,179
    09-20-04, 02:50 AM Go to last post
  1. Driving along and suddenly, DEAD!

    Started by 83CADMAN‎, 12-28-11 02:13 PM
    • Replies: 14
    • Views: 565
    12-31-11, 08:57 PM Go to last post
    • Replies: 7
    • Views: 539
    12-28-11, 05:30 PM Go to last post
  2. Starter Gear Clearance

    Started by Sevillian273‎, 12-27-11 01:22 PM
    • Replies: 2
    • Views: 525
    12-27-11, 04:12 PM Go to last post
  3. hesitation and backfire 4100

    Started by grantjr‎, 07-07-06 07:08 PM
    • Replies: 12
    • Views: 1,750
    12-20-11, 03:22 AM Go to last post
  4. Idle Problems After Mechanic

    Started by Enigmaticwraith‎, 12-14-11 02:41 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,362
    12-18-11, 08:51 PM Go to last post
  5. Exclamation Lurching '91 Deville

    Started by paviliux‎, 12-04-11 12:42 PM
    • Replies: 0
    • Views: 496
    12-04-11, 12:42 PM Go to last post
    • Replies: 2
    • Views: 654
    11-28-11, 11:16 AM Go to last post
  6. 4.5L Deville runnability issues/ emissions problems

    Started by nfakbc‎, 09-07-10 11:45 PM
    • Replies: 11
    • Views: 4,512
    11-25-11, 02:27 AM Go to last post
  7. Calling all 4.5 PFI and 4.9 PFI Owners

    Started by awadecki‎, 04-23-07 02:41 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 5,173
    11-22-11, 02:44 AM Go to last post
  8. Angry replacing water pump on my old '84 DeVille 4.1 engine

    Started by gsim‎, 11-08-11 05:45 PM
    • Replies: 1
    • Views: 1,571
    11-11-11, 11:09 AM Go to last post
  9. Code E49 Air Injection System Fault

    Started by Cristofo‎, 04-06-11 10:40 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 5,915
    11-09-11, 09:08 AM Go to last post
  10. What are the symptoms of CVJ’s failing?

    Started by 83CADMAN‎, 10-26-11 09:43 PM
    • Replies: 13
    • Views: 934
    11-08-11, 04:22 AM Go to last post
  11. Car not starting

    Started by cadillaceldo93‎, 09-30-11 12:42 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 1,573
    10-14-11, 11:58 AM Go to last post
  12. Question Problem with 1990 Seville 4.5

    Started by 83CADMAN‎, 09-29-11 02:51 PM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 4,177
    10-12-11, 10:19 PM Go to last post
  13. change spark plugs, 1989 seville 4.5

    Started by FrankHgh‎, 09-28-11 07:39 PM
    • Replies: 7
    • Views: 3,040
    HUF
    10-03-11, 10:30 PM Go to last post
  14. Rough Running 4.9 - Please Help !

    Started by Moms95DeVille4.9‎, 08-04-11 05:06 PM
    2 Pages
    1 2
    • Replies: 28
    • Views: 4,536
    10-03-11, 02:38 PM Go to last post
  15. Oil Leaking from "Everywhere"

    Started by Enigmaticwraith‎, 09-27-11 05:38 PM
    • Replies: 9
    • Views: 1,449
    09-30-11, 02:20 PM Go to last post
  16. 4.9 EGR Removal???

    Started by H P Bushrod‎, 06-30-06 12:34 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,356
    09-28-11, 12:36 PM Go to last post
    • Replies: 3
    • Views: 902
    09-26-11, 08:23 PM Go to last post
  17. 1991 Cadillac Biarittz - Engine problem.

    Started by iamthearyan‎, 09-03-11 04:09 PM
    • Replies: 6
    • Views: 1,300
    09-25-11, 05:24 AM Go to last post
  18. I'm going to try the 4.1->4.9 conversion

    Started by ehall‎, 01-13-08 02:49 AM
    11 Pages
    1 2 3 4 5 6 7 8 9 10 11
    • Replies: 151
    • Views: 16,808
    09-19-11, 05:42 PM Go to last post
  19. 90 deville 4.5 stalling problems

    Started by dantg‎, 09-15-11 08:48 PM
    • Replies: 6
    • Views: 736
    09-17-11, 03:53 PM Go to last post
  20. Unhappy 1983 Eldorado engine running problem!

    Started by nizki1981‎, 09-13-11 04:09 PM
    • Replies: 2
    • Views: 1,082
    09-14-11, 02:42 AM Go to last post
  21. 1990 cadillac deville

    Started by scootterj‎, 08-27-11 08:22 PM
    • Replies: 5
    • Views: 5,030
    09-08-11, 07:03 AM Go to last post
  22. Did I miss anything?

    Started by watajob‎, 09-06-11 12:08 AM
    • Replies: 9
    • Views: 543
    09-07-11, 09:17 PM Go to last post

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