HT4100 4.1, 4.5, 4.9 - Page 44
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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: 14,565
    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: 97,677
    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: 45,188
    09-20-04, 01:50 AM Go to last post
  1. Ongoing Issues, running rough poor idle

    Started by 90Brougham350‎, 10-05-08 08:44 AM
    • Replies: 13
    • Views: 1,876
    10-12-08, 09:59 PM Go to last post
  2. Yes, I Did It

    Started by EldoRedo‎, 10-08-08 11:20 PM
    • Replies: 10
    • Views: 931
    10-12-08, 06:39 PM Go to last post
    • Replies: 7
    • Views: 2,856
    10-12-08, 06:06 PM Go to last post
  3. Proper Spark Plug Gap for 4.5

    Started by MaineWater‎, 10-12-08 11:57 AM
    • Replies: 2
    • Views: 1,345
    10-12-08, 05:17 PM Go to last post
  4. 1990 Deville 4.5 help

    Started by MaineWater‎, 10-09-08 10:34 PM
    • Replies: 4
    • Views: 761
    10-10-08, 06:36 PM Go to last post
  5. Harmonic Balance

    Started by makaveli956‎, 10-08-08 10:56 AM
    • Replies: 2
    • Views: 452
    10-09-08, 01:23 AM Go to last post
  6. clackin noise 4.9 deville

    Started by makaveli956‎, 09-28-08 06:53 PM
    • Replies: 4
    • Views: 668
    10-08-08, 02:37 PM Go to last post
  7. 4100 engine temperature

    Started by leek‎, 10-06-08 06:02 AM
    • Replies: 9
    • Views: 1,026
    10-08-08, 09:16 AM Go to last post
  8. The worst gas miliage ever

    Started by johnplara‎, 06-24-08 01:26 AM
    3 Pages
    1 2 3
    • Replies: 35
    • Views: 4,040
    10-07-08, 07:08 PM Go to last post
  9. Trans cooler flush

    Started by Dave S Texas‎, 10-04-08 12:18 PM
    • Replies: 2
    • Views: 487
    10-04-08, 10:55 PM Go to last post
  10. code po23??? Any thoughts

    Started by hcaddy95‎, 10-01-08 09:29 AM
    • Replies: 2
    • Views: 1,227
    10-03-08, 12:47 PM Go to last post
  11. Throttle valve cable '85

    Started by jdmrrs‎, 09-29-08 03:15 PM
    • Replies: 1
    • Views: 450
    10-02-08, 11:06 PM Go to last post
  12. 4.9 exhaust info

    Started by Ghost C‎, 09-30-08 04:55 PM
    • Replies: 1
    • Views: 893
    09-30-08, 09:10 PM Go to last post
  13. B336 code, 86 seville

    Started by ht4100‎, 08-14-08 08:07 PM
    • Replies: 4
    • Views: 900
    09-29-08, 10:54 PM Go to last post
  14. Oil-leak solved!

    Started by Dave S Texas‎, 09-26-08 11:13 AM
    • Replies: 0
    • Views: 769
    09-26-08, 11:13 AM Go to last post
  15. WOW this is a 4.9

    Started by themadwacker1‎, 09-25-08 06:47 PM
    • Replies: 2
    • Views: 878
    09-26-08, 12:28 AM Go to last post
  16. Oil Pressure

    Started by Dave S Texas‎, 09-19-08 07:11 AM
    • Replies: 5
    • Views: 614
    09-23-08, 05:44 PM Go to last post
  17. Angry ...the HG gremlin got me

    Started by noahsdad‎, 09-16-08 10:37 PM
    • Replies: 4
    • Views: 603
    09-22-08, 09:07 AM Go to last post
  18. Unhappy Once again......no joy

    Started by Dave S Texas‎, 09-12-08 04:35 PM
    • Replies: 10
    • Views: 734
    09-20-08, 11:55 AM Go to last post
  19. Rough running, bad mileage, unstable idle

    Started by delerium75‎, 08-24-08 02:24 AM
    • Replies: 11
    • Views: 2,190
    09-15-08, 03:16 PM Go to last post
  20. Head Gasket 91 caddy

    Started by makaveli956‎, 09-14-08 07:34 PM
    • Replies: 0
    • Views: 470
    09-14-08, 07:34 PM Go to last post
  21. Severs Idle Problem

    Started by hcaddy95‎, 08-05-08 08:50 AM
    2 Pages
    1 2
    • Replies: 21
    • Views: 2,423
    09-12-08, 07:40 PM Go to last post
  22. BCM Location?

    Started by Tailfin‎, 09-11-08 07:22 PM
    • Replies: 2
    • Views: 2,654
    09-12-08, 12:26 AM Go to last post
  23. Oil-tube gasket & o-ring

    Started by Dave S Texas‎, 09-10-08 04:23 PM
    • Replies: 2
    • Views: 375
    09-11-08, 08:39 AM Go to last post
  24. Loud bang, car won't turn over. 4100 '82 Deville

    Started by Slacker‎, 07-29-08 04:14 PM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 5,441
    09-10-08, 07:58 AM Go to last post

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