HT4100 4.1, 4.5, 4.9 - Page 30
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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: 14,469
    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: 97,005
    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: 44,768
    09-20-04, 02:50 AM Go to last post
  1. Exclamation PO48 Current/ EGR Fault

    Started by MrSeville4.9‎, 09-19-08 08:20 PM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 6,743
    09-04-09, 01:32 AM Go to last post
  2. 84 Eldorado Transmission Problems

    Started by dontra13‎, 08-27-09 10:04 PM
    • Replies: 1
    • Views: 2,058
    09-03-09, 06:14 PM Go to last post
  3. Have you used sea foam?

    Started by MrDobin‎, 09-02-09 01:41 PM
    • Replies: 7
    • Views: 1,248
    09-03-09, 06:00 PM Go to last post
  4. Coolant.

    Started by MrDobin‎, 08-28-09 10:44 PM
    • Replies: 8
    • Views: 658
    09-02-09, 11:18 PM Go to last post
  5. Hi. I need lots of help concerning the 4.9L. Thanks.

    Started by STSOnly‎, 07-02-04 05:24 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 7,589
    08-31-09, 01:13 PM Go to last post
  6. here we go again, A/C

    Started by wiskerbizkit‎, 08-25-09 11:19 PM
    • Replies: 2
    • Views: 329
    08-27-09, 11:35 AM Go to last post
  7. help

    Started by V-Eight‎, 08-24-09 04:54 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 775
    08-27-09, 09:50 AM Go to last post
  8. 4100 vacuum diagram

    Started by BRICKS‎, 07-26-09 10:00 PM
    • Replies: 4
    • Views: 4,258
    08-25-09, 06:02 AM Go to last post
  9. Severe Coolant Leak 4.9

    Started by Big John‎, 08-16-09 12:17 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,638
    08-24-09, 02:00 PM Go to last post
  10. fuel meter cover gasket...

    Started by BRICKS‎, 08-22-09 12:55 PM
    • Replies: 0
    • Views: 393
    08-22-09, 12:55 PM Go to last post
  11. Cool Makes no sense...

    Started by MrDobin‎, 08-19-09 12:03 AM
    • Replies: 7
    • Views: 566
    08-20-09, 11:24 AM Go to last post
  12. peformance chips

    Started by mikeman711‎, 08-15-09 11:14 PM
    • Replies: 6
    • Views: 515
    08-18-09, 09:57 PM Go to last post
  13. Missing Antifreeze

    Started by tru504187211‎, 08-16-09 01:01 PM
    • Replies: 6
    • Views: 1,334
    08-18-09, 01:48 AM Go to last post
    • Replies: 0
    • Views: 927
    08-15-09, 02:33 PM Go to last post
  14. won't idle

    Started by jumbo48‎, 08-13-09 10:33 PM
    • Replies: 1
    • Views: 316
    HUF
    08-14-09, 12:20 AM Go to last post
  15. New code?

    Started by creeker‎, 08-12-09 05:14 PM
    • Replies: 7
    • Views: 399
    08-12-09, 11:51 PM Go to last post
  16. e.g.r. valve

    Started by creeker‎, 08-08-09 01:09 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,141
    08-12-09, 06:28 PM Go to last post
  17. 94 Deville Help!!

    Started by surge55‎, 08-06-09 02:29 PM
    • Replies: 10
    • Views: 1,344
    08-12-09, 05:00 PM Go to last post
  18. voltage regulator...?

    Started by leek‎, 08-12-09 03:18 AM
    • Replies: 4
    • Views: 1,437
    08-12-09, 04:54 PM Go to last post
  19. Caddy V-8 history

    Started by steelybill‎, 08-12-09 08:52 AM
    • Replies: 0
    • Views: 494
    08-12-09, 08:52 AM Go to last post
  20. sudden engine probs

    Started by ehall‎, 07-19-09 04:35 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,334
    08-11-09, 08:01 PM Go to last post
  21. Emission test failed

    Started by Ruud‎, 08-04-09 05:48 PM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 4,062
    08-10-09, 08:29 PM Go to last post
  22. 4.5 running rough at start -- tune up????

    Started by caddymark‎, 08-09-09 06:21 PM
    • Replies: 5
    • Views: 865
    08-10-09, 05:31 PM Go to last post
  23. 4.1 belt tensioner

    Started by steelybill‎, 07-26-09 12:27 AM
    • Replies: 7
    • Views: 981
    08-09-09, 09:35 PM Go to last post
  24. 4.9 throttle body description

    Started by creeker‎, 08-05-09 12:14 AM
    • Replies: 5
    • Views: 646
    08-09-09, 12:39 PM Go to last post

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