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: 14,276
    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: 95,821
    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: 44,239
    09-20-04, 02:50 AM Go to last post
  1. Boosting HT4100 Performance

    Started by DrDave‎, 02-21-05 05:50 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 8,939
    02-15-12, 02:11 PM Go to last post
  2. 1985 eldorado biarritz won't start

    Started by bernier7‎, 01-07-12 10:50 PM
    • Replies: 8
    • Views: 6,660
    02-13-12, 02:38 PM Go to last post
  3. 4.9 litre tune up 94 deville

    Started by cad-der-ack‎, 02-02-12 05:08 PM
    • Replies: 4
    • Views: 1,694
    02-09-12, 12:28 PM Go to last post
  4. HT4100 SYSTEM PROBLEM E047 and B334

    Started by globetrotter8888‎, 07-18-07 04:36 AM
    • Replies: 10
    • Views: 1,233
    02-01-12, 06:03 PM Go to last post
  5. Starting issue -- 91 Eldorado

    Started by EldoRedo‎, 01-27-12 07:33 PM
    • Replies: 4
    • Views: 625
    01-30-12, 02:25 PM Go to last post
  6. 86 seville 4.1 low engine power-issue

    Started by ht4100‎, 07-19-11 10:06 PM
    • Replies: 6
    • Views: 1,143
    01-26-12, 10:04 PM Go to last post
  7. P085 ....... Idle Throttle Angle Too High

    Started by johnp‎, 05-21-05 02:11 PM
    • Replies: 6
    • Views: 4,925
    01-26-12, 04:01 PM Go to last post
  8. 1990 deville 4.5 trouble code air management fault?

    Started by dallasj‎, 08-02-06 09:11 PM
    • Replies: 2
    • Views: 3,061
    01-21-12, 06:13 AM Go to last post
  9. 4.9 Info Needed

    Started by General_Motors_Fan‎, 01-18-12 05:17 PM
    • Replies: 4
    • Views: 663
    01-19-12, 06:14 PM Go to last post
  10. Question Oh Sh*%! I lost my head.

    Started by 83CADMAN‎, 01-13-12 03:38 PM
    • Replies: 11
    • Views: 762
    01-17-12, 04:59 PM Go to last post
  11. Remove oil pump on cadillac eldorado 1985 ?

    Started by KINGUYOM‎, 01-10-12 03:16 PM
    • Replies: 0
    • Views: 676
    01-10-12, 03:16 PM Go to last post
  12. 4.9 pulled head bolt threads

    Started by sparkys88gt‎, 01-06-12 09:13 AM
    • Replies: 1
    • Views: 676
    01-07-12, 07:54 PM Go to last post
    • Replies: 1
    • Views: 873
    01-07-12, 12:48 AM Go to last post
  13. 95 sedan shuts down while driving

    Started by Lamar95sedan‎, 12-29-11 10:45 AM
    • Replies: 4
    • Views: 599
    01-02-12, 04:26 PM Go to last post
  14. Driving along and suddenly, DEAD!

    Started by 83CADMAN‎, 12-28-11 02:13 PM
    • Replies: 14
    • Views: 584
    12-31-11, 08:57 PM Go to last post
    • Replies: 7
    • Views: 554
    12-28-11, 05:30 PM Go to last post
  15. Starter Gear Clearance

    Started by Sevillian273‎, 12-27-11 01:22 PM
    • Replies: 2
    • Views: 551
    12-27-11, 04:12 PM Go to last post
  16. hesitation and backfire 4100

    Started by grantjr‎, 07-07-06 07:08 PM
    • Replies: 12
    • Views: 1,811
    12-20-11, 03:22 AM Go to last post
  17. Idle Problems After Mechanic

    Started by Enigmaticwraith‎, 12-14-11 02:41 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,412
    12-18-11, 08:51 PM Go to last post
  18. Exclamation Lurching '91 Deville

    Started by paviliux‎, 12-04-11 12:42 PM
    • Replies: 0
    • Views: 504
    12-04-11, 12:42 PM Go to last post
    • Replies: 2
    • Views: 664
    11-28-11, 11:16 AM Go to last post
  19. 4.5L Deville runnability issues/ emissions problems

    Started by nfakbc‎, 09-07-10 11:45 PM
    • Replies: 11
    • Views: 4,799
    11-25-11, 02:27 AM Go to last post
  20. 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: 5,343
    11-22-11, 02:44 AM Go to last post
  21. Angry replacing water pump on my old '84 DeVille 4.1 engine

    Started by gsim‎, 11-08-11 05:45 PM
    • Replies: 1
    • Views: 1,663
    11-11-11, 11:09 AM Go to last post
  22. Code E49 Air Injection System Fault

    Started by Cristofo‎, 04-06-11 10:40 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 6,205
    11-09-11, 09:08 AM Go to last post

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