HT4100 4.1, 4.5, 4.9 - Page 28
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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: OBD I codes for 4.x Engines

    Started by DaveSmed‎, 09-20-04 01:50 AM
    • Replies: 0
    • Views: 47,356
    09-20-04, 01:50 AM Go to last post
  1. 4.1 Motor? Rattles/Engine Pinging?

    Started by JoJo_Brand_Star‎, 11-13-09 02:47 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,686
    11-17-09, 01:11 AM Go to last post
  2. Fuel pump and FPR recommendations?

    Started by Sevillian273‎, 11-01-09 07:44 PM
    • Replies: 14
    • Views: 967
    11-16-09, 09:14 PM Go to last post
  3. 4.1 L digital engine

    Started by 19cadillac85‎, 11-14-09 08:32 PM
    • Replies: 4
    • Views: 766
    11-14-09, 10:17 PM Go to last post
  4. The Best Kind of Motor Oil For 87 Deville HT4100

    Started by JoJo_Brand_Star‎, 11-10-09 07:36 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 4,948
    11-14-09, 11:25 AM Go to last post
  5. P048 EGR code on 4.9L

    Started by primerib‎, 11-12-09 11:11 AM
    • Replies: 6
    • Views: 2,105
    HUF
    11-14-09, 11:11 AM Go to last post
  6. 4.9 issue...

    Started by soulman07‎, 11-05-09 10:57 PM
    • Replies: 6
    • Views: 994
    11-13-09, 11:06 PM Go to last post
  7. 4.9L head bolts 1993

    Started by tlbaker‎, 11-13-09 09:50 AM
    • Replies: 0
    • Views: 557
    11-13-09, 09:50 AM Go to last post
    • Replies: 5
    • Views: 5,815
    11-12-09, 07:28 PM Go to last post
  8. 84 deville 4.1 starting prob's help please

    Started by simon_84deville‎, 10-18-09 06:56 PM
    • Replies: 14
    • Views: 753
    11-12-09, 07:21 PM Go to last post
  9. 4.9 Power Steering Pulley Slipping

    Started by behind-bars‎, 11-09-09 09:43 PM
    • Replies: 11
    • Views: 1,628
    11-11-09, 08:35 PM Go to last post
  10. Gas mileage gone to hell

    Started by V-Eight‎, 11-10-09 12:27 AM
    • Replies: 7
    • Views: 587
    11-11-09, 02:10 AM Go to last post
  11. idle faster after change timming

    Started by markleeblue‎, 11-09-09 10:53 PM
    • Replies: 5
    • Views: 374
    11-10-09, 08:31 PM Go to last post
  12. Could bad motor mounts cause stumbling on light acceleration

    Started by mike93‎, 10-31-09 02:11 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 2,736
    11-10-09, 04:56 PM Go to last post
  13. 4.9 knock

    Started by rivrboat‎, 11-07-09 04:23 PM
    • Replies: 9
    • Views: 884
    11-09-09, 08:52 PM Go to last post
  14. Code 26 & 41 '91 4.9

    Started by STS_Seville_Hunter‎, 11-03-09 03:16 AM
    • Replies: 5
    • Views: 947
    11-06-09, 09:18 AM Go to last post
  15. A/C Compressor Belt Bypass - 89 Deville 4.5

    Started by ghutchin‎, 12-30-07 04:51 PM
    • Replies: 4
    • Views: 2,748
    11-04-09, 07:33 PM Go to last post
  16. where to buy mounting bracket for PS pump?

    Started by primerib‎, 11-03-09 05:16 PM
    • Replies: 5
    • Views: 643
    11-04-09, 09:08 AM Go to last post
  17. 1993 Sedan Deville Transmission Swap

    Started by truggenberg‎, 11-03-09 03:48 PM
    • Replies: 2
    • Views: 3,377
    11-03-09, 07:16 PM Go to last post
  18. rpm question

    Started by mikeman711‎, 11-03-09 09:03 AM
    • Replies: 2
    • Views: 341
    11-03-09, 03:52 PM Go to last post
  19. Question re: engine swap for 85 FW coupe RWD

    Started by SCU187‎, 11-03-09 02:02 AM
    • Replies: 1
    • Views: 477
    11-03-09, 11:02 AM Go to last post
  20. Motor is very clean in my 4.9

    Started by mike93‎, 10-28-09 06:16 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,002
    11-01-09, 02:26 AM Go to last post
  21. 84 eldo. antena

    Started by DNE‎, 10-26-09 02:10 PM
    • Replies: 5
    • Views: 389
    DNE
    10-29-09, 07:31 PM Go to last post
  22. Misfire at idle and sumble under acceleration 93 4.9

    Started by mike93‎, 10-21-09 06:59 PM
    4 Pages
    1 2 3 4
    • Replies: 50
    • Views: 4,782
    10-29-09, 11:01 AM Go to last post
  23. 4.5L engine runs rough

    Started by Romy‎, 05-22-08 07:52 AM
    2 Pages
    1 2
    • Replies: 28
    • Views: 4,920
    10-27-09, 11:14 PM Go to last post
  24. Cold Air Intake/Exhaust

    Started by SiK GambleR‎, 10-27-09 02:31 PM
    • Replies: 0
    • Views: 448
    10-27-09, 02:31 PM Go to last post

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