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 06:53 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 14,675
    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: 98,406
    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: 45,692
    09-20-04, 01:50 AM Go to last post
  1. How do you convert 80's model to R134

    Started by 87allante4.9swap‎, 09-02-09 04:46 PM
    • Replies: 6
    • Views: 926
    09-16-09, 04:52 PM Go to last post
  2. Distributor Gear Sheared Again...Help!

    Started by ps_vee‎, 08-02-09 01:49 PM
    • Replies: 3
    • Views: 1,150
    09-15-09, 08:53 PM Go to last post
  3. 1985 Eldo Gas Leaking out of the Charcoal Can

    Started by Elwood‎, 08-03-09 08:15 PM
    • Replies: 13
    • Views: 941
    09-10-09, 09:06 PM Go to last post
  4. Sawping Out a 4.9

    Started by themadwacker1‎, 09-05-09 08:07 AM
    • Replies: 3
    • Views: 469
    09-10-09, 04:40 PM Go to last post
  5. car stutters intermittently under med/heavy acceleration

    Started by red_ghost‎, 08-17-09 12:35 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 4,311
    09-05-09, 01:00 PM Go to last post
  6. 84 eldo trouble

    Started by DNE‎, 08-25-09 09:03 PM
    • Replies: 4
    • Views: 412
    09-04-09, 04:59 PM Go to last post
  7. Your best 4.X MPG?

    Started by drewsdeville‎, 07-06-09 03:49 PM
    4 Pages
    1 2 3 4
    • Replies: 59
    • Views: 3,546
    09-04-09, 09:23 AM Go to last post
  8. Exclamation PO48 Current/ EGR Fault

    Started by MrSeville4.9‎, 09-19-08 07:20 PM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 6,853
    09-04-09, 12:32 AM Go to last post
  9. 84 Eldorado Transmission Problems

    Started by dontra13‎, 08-27-09 09:04 PM
    • Replies: 1
    • Views: 2,117
    09-03-09, 05:14 PM Go to last post
  10. Have you used sea foam?

    Started by MrDobin‎, 09-02-09 12:41 PM
    • Replies: 7
    • Views: 1,263
    09-03-09, 05:00 PM Go to last post
  11. Coolant.

    Started by MrDobin‎, 08-28-09 09:44 PM
    • Replies: 8
    • Views: 662
    09-02-09, 10:18 PM Go to last post
  12. Hi. I need lots of help concerning the 4.9L. Thanks.

    Started by STSOnly‎, 07-02-04 04:24 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 7,667
    08-31-09, 12:13 PM Go to last post
  13. here we go again, A/C

    Started by wiskerbizkit‎, 08-25-09 10:19 PM
    • Replies: 2
    • Views: 338
    08-27-09, 10:35 AM Go to last post
  14. help

    Started by V-Eight‎, 08-24-09 03:54 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 781
    08-27-09, 08:50 AM Go to last post
  15. 4100 vacuum diagram

    Started by BRICKS‎, 07-26-09 09:00 PM
    • Replies: 4
    • Views: 4,321
    08-25-09, 05:02 AM Go to last post
  16. Severe Coolant Leak 4.9

    Started by Big John‎, 08-16-09 11:17 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,653
    08-24-09, 01:00 PM Go to last post
  17. fuel meter cover gasket...

    Started by BRICKS‎, 08-22-09 11:55 AM
    • Replies: 0
    • Views: 394
    08-22-09, 11:55 AM Go to last post
  18. Cool Makes no sense...

    Started by MrDobin‎, 08-18-09 11:03 PM
    • Replies: 7
    • Views: 567
    08-20-09, 10:24 AM Go to last post
  19. peformance chips

    Started by mikeman711‎, 08-15-09 10:14 PM
    • Replies: 6
    • Views: 525
    08-18-09, 08:57 PM Go to last post
  20. Missing Antifreeze

    Started by tru504187211‎, 08-16-09 12:01 PM
    • Replies: 6
    • Views: 1,350
    08-18-09, 12:48 AM Go to last post
    • Replies: 0
    • Views: 951
    08-15-09, 01:33 PM Go to last post
  21. won't idle

    Started by jumbo48‎, 08-13-09 09:33 PM
    • Replies: 1
    • Views: 316
    HUF
    08-13-09, 11:20 PM Go to last post
  22. New code?

    Started by creeker‎, 08-12-09 04:14 PM
    • Replies: 7
    • Views: 406
    08-12-09, 10:51 PM Go to last post
  23. e.g.r. valve

    Started by creeker‎, 08-08-09 12:09 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,155
    08-12-09, 05:28 PM Go to last post
  24. 94 Deville Help!!

    Started by surge55‎, 08-06-09 01:29 PM
    • Replies: 10
    • Views: 1,350
    08-12-09, 04:00 PM Go to last post

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