HT4100 4.1, 4.5, 4.9
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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: 48,203
    09-20-04, 01:50 AM Go to last post
  1. #$$%^%@#$% damn .....floods on hot restart

    Started by Stoneage_Caddy‎, 11-08-06 02:40 PM
    • Replies: 10
    • Views: 527
    11-10-06, 11:03 AM Go to last post
  2. $.1 motor

    Started by Jamescichocki‎, 02-11-04 08:33 PM
    • Replies: 3
    • Views: 979
    02-12-04, 08:12 PM Go to last post
  3. "illumina" and other Gurus

    Started by ChadTanner‎, 04-29-08 02:54 AM
    • Replies: 14
    • Views: 1,116
    01-10-10, 09:01 AM Go to last post
  4. "Sail on" after cleaning throttle body

    Started by blue90sdv‎, 01-05-09 02:23 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 5,192
    01-08-09, 09:00 PM Go to last post
  5. "system problem"

    Started by Moondoggie‎, 06-14-11 08:50 PM
    • Replies: 8
    • Views: 767
    06-26-11, 09:50 AM Go to last post
    • Replies: 10
    • Views: 4,461
    03-28-08, 01:46 AM Go to last post
    • Replies: 4
    • Views: 924
    02-11-05, 12:37 AM Go to last post
  6. '82 Fleetwood D'elegance coupe problem :(

    Started by Kadillac G‎, 11-16-11 03:18 PM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 5,952
    11-11-12, 03:09 PM Go to last post
    • Replies: 1
    • Views: 855
    02-06-05, 07:14 PM Go to last post
  7. '83 Eldorado with HT4100 V8, Rebuild or Replace?

    Started by Ramseven‎, 03-06-09 11:52 AM
    • Replies: 2
    • Views: 3,123
    03-13-09, 06:18 AM Go to last post
  8. '84 4.1 idles up and down when the A/C is on

    Started by Bobby Eyes‎, 06-21-10 08:53 PM
    • Replies: 7
    • Views: 693
    07-04-10, 09:44 PM Go to last post
  9. '84 4.1 running VERY rich, PLEASE HELP!!!!

    Started by rollerz70‎, 12-23-04 12:58 AM
    • Replies: 2
    • Views: 585
    12-25-04, 12:38 AM Go to last post
  10. '84 Eldo Code 44

    Started by vlrench‎, 02-25-07 11:41 AM
    • Replies: 2
    • Views: 433
    02-25-07, 11:04 PM Go to last post
  11. '84 Eldo Failed NOx

    Started by vlrench‎, 08-27-05 12:52 PM
    • Replies: 5
    • Views: 485
    08-27-05, 11:50 PM Go to last post
  12. '84 Eldorado 4100 vacuum readings

    Started by Bob Tarpenning‎, 06-07-10 12:07 PM
    • Replies: 4
    • Views: 1,014
    06-09-10, 10:35 PM Go to last post
  13. '84 Eldorado blown head gasket?

    Started by NyoAZZ‎, 12-06-06 01:23 PM
    • Replies: 4
    • Views: 1,041
    12-30-06, 07:19 PM Go to last post
  14. '85 Deville Engine Temp Fan Light

    Started by MSUC5Vette‎, 08-14-04 12:04 AM
    • Replies: 9
    • Views: 693
    08-16-04, 01:04 PM Go to last post
  15. '85 Deville running rich

    Started by Imprl59‎, 04-04-05 10:30 PM
    • Replies: 8
    • Views: 902
    04-19-05, 05:13 PM Go to last post
    • Replies: 4
    • Views: 742
    02-06-06, 07:24 PM Go to last post
  16. '85 eldo 4.1 head leak

    Started by cadeldoman1‎, 02-04-05 01:03 AM
    • Replies: 5
    • Views: 782
    02-09-05, 11:08 PM Go to last post
  17. '85 Fleetwood Brougham 4100

    Started by AElayyat‎, 04-27-04 06:41 PM
    • Replies: 3
    • Views: 538
    04-28-04, 06:37 PM Go to last post
  18. '85 Fleetwood Brougham High Idel

    Started by AElayyat‎, 02-16-04 12:10 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,481
    05-07-04, 04:24 PM Go to last post
    • Replies: 1
    • Views: 531
    12-15-08, 06:14 PM Go to last post
  19. '85 Seville 4.1L engine missing after tune-up.

    Started by atikovi‎, 08-23-06 07:31 PM
    • Replies: 12
    • Views: 1,382
    09-02-06, 12:48 PM Go to last post
    • Replies: 0
    • Views: 1,255
    07-16-11, 03:23 PM Go to last post

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