HT4100 4.1, 4.5, 4.9 - Page 56
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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: 12,647
    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: 84,982
    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: 39,187
    09-20-04, 01:50 AM Go to last post
  1. Another tip for 4.x car owners

    Started by awadecki‎, 07-05-07 06:52 PM
    • Replies: 5
    • Views: 810
    10-01-07, 02:04 AM Go to last post
  2. Premium Fuel in the 4.9?

    Started by General_Motors_Fan‎, 06-27-07 08:33 AM
    2 Pages
    1 2
    • Replies: 25
    • Views: 7,213
    09-30-07, 08:42 PM Go to last post
  3. Won't Start After Driving

    Started by mckimjim‎, 09-30-07 01:07 PM
    • Replies: 1
    • Views: 401
    HUF
    09-30-07, 03:11 PM Go to last post
  4. need help concerning tune up

    Started by 83deville‎, 09-29-07 09:35 PM
    • Replies: 1
    • Views: 448
    09-29-07, 11:40 PM Go to last post
  5. newbie need help

    Started by Foothills Flyer‎, 08-05-07 09:46 AM
    • Replies: 6
    • Views: 391
    HUF
    09-29-07, 06:20 PM Go to last post
  6. Engine Noise

    Started by moondok‎, 06-14-07 02:22 AM
    • Replies: 5
    • Views: 609
    09-28-07, 09:52 PM Go to last post
  7. my 4100--what would you do

    Started by ehall‎, 09-08-07 09:13 AM
    • Replies: 12
    • Views: 1,008
    09-28-07, 05:48 PM Go to last post
  8. should I replace the catalytic converter

    Started by ehall‎, 09-28-07 02:32 PM
    • Replies: 0
    • Views: 492
    09-28-07, 02:32 PM Go to last post
  9. Question how many mods do you all know about?

    Started by wiccantoy‎, 09-21-07 05:53 PM
    • Replies: 3
    • Views: 414
    09-27-07, 11:17 PM Go to last post
  10. high output alternator

    Started by still_walkin‎, 09-20-07 03:56 AM
    • Replies: 6
    • Views: 3,625
    09-27-07, 12:21 AM Go to last post
  11. Torque converter lock up solenoid, Where?

    Started by caddeville‎, 09-18-07 01:24 AM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,264
    09-26-07, 03:17 PM Go to last post
  12. 1990 deville shifting problem

    Started by brianroark‎, 09-26-07 04:31 AM
    • Replies: 0
    • Views: 422
    09-26-07, 04:31 AM Go to last post
  13. TBI injectors

    Started by cadi197‎, 09-24-07 04:55 PM
    • Replies: 0
    • Views: 599
    09-24-07, 04:55 PM Go to last post
  14. Code E15???????

    Started by kingkreations‎, 09-23-07 06:00 PM
    • Replies: 0
    • Views: 616
    09-23-07, 06:00 PM Go to last post
  15. 4.1 Engine: Sensor Above #8 Spark Plug?

    Started by PeteC‎, 09-22-07 08:10 PM
    • Replies: 2
    • Views: 441
    09-23-07, 05:12 PM Go to last post
  16. e44 o2 error

    Started by firezone‎, 09-05-07 04:00 AM
    • Replies: 4
    • Views: 618
    09-22-07, 11:15 PM Go to last post
  17. Cadillac 4.5L PFI and 4.9L PFI IAT?

    Started by N0DIH‎, 09-10-07 11:54 AM
    • Replies: 1
    • Views: 641
    09-22-07, 11:03 PM Go to last post
    • Replies: 3
    • Views: 476
    09-22-07, 10:58 PM Go to last post
  18. Non GM parts=sick Cadillac??

    Started by Bluenose1‎, 09-19-07 08:58 AM
    • Replies: 4
    • Views: 534
    09-22-07, 10:15 PM Go to last post
  19. Exclamation 4.9 Deville Concours driving terrible again!

    Started by rlowe228‎, 09-18-07 08:17 PM
    • Replies: 3
    • Views: 414
    09-19-07, 09:25 PM Go to last post
  20. 85 Eldo HT 4100 ISC/TPS

    Started by 85moeldo‎, 09-15-07 09:46 PM
    • Replies: 3
    • Views: 1,033
    09-18-07, 06:17 PM Go to last post
  21. Engine Swap

    Started by D'Elegance‎, 09-18-07 01:05 AM
    • Replies: 1
    • Views: 535
    09-18-07, 10:36 AM Go to last post
  22. 4100 engine temp??

    Started by leek‎, 09-15-07 01:57 PM
    • Replies: 1
    • Views: 479
    09-16-07, 08:11 AM Go to last post
  23. Question 4.5 spark plugs

    Started by snydly402‎, 09-15-07 01:57 PM
    • Replies: 2
    • Views: 437
    09-15-07, 04:05 PM Go to last post
  24. Finally Solved 4.1 Hesitation: Coil & Plug Wires

    Started by PeteC‎, 09-14-07 11:00 PM
    • Replies: 1
    • Views: 527
    09-15-07, 09:50 AM Go to last post

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