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  1. W

    Code 11, 12, 21, 56

    It will run at full throttle though when this symptom starts
  2. W

    Code 11, 12, 21, 56

    96' XJ 4.0L AT It runs fine when it is cold but after driving on the highway for 5 mins, the power cuts out and starts backfiring
  3. W

    Code 11, 12, 21, 56

    I am having a bunch of timing issues when my jeep warms up.. these are the codes that it is showing... any advice?
  4. W

    code 1391 still.. why?

    I am having the same problem and cant' get rid of it... I'm thinking of burning my jeep to the ground and taking pictures...
  5. W

    code 1391

    well I just put in my spare crankshaft sensor and the problem still exists.. I checked all of the wires and all seems ok.. I guess it is time for a cam sensor because the problem is getting worse every time I drive it.
  6. W

    code 1391

    The 1391 code is for the cmp or ckp.. I didn't think that the crankshaft sensor had occasional failures, I thought it would just fail completely.. any advice?
  7. W

    code 1391

    I am having an occasional backfire and miss while driving down the road. Other than that it runs great 90% of the time. It is a 96 xj 4.0 auto. I also have a IAC code and an Engine temp high input code as well. any advice?
  8. W

    cylinder head

    can i use an 89?
  9. W

    cylinder head

    Thank you...
  10. W

    cylinder head

    I have a 96 H.O. with a bad head, what year will they interchange?
  11. W

    Strange engine start issue

    I never had to drop my tank..
  12. W

    3500-3800 RPM missfiring/bogging out?

    Mine was stuck in a creek up to the bottom of the grille, it was 4 in the morning and 5 degrees. After wading in the creek for a half hour I had to ditch it.. It has been running fine for a couple days now. It started doing the same thing yours is this morning. It is way to cold here for...
  13. W

    3500-3800 RPM missfiring/bogging out?

    I am having the same problem, did the tps fix it?
  14. W

    H.O. flywheel on a Renix

    Thanks guys, I thougt I accidently put one in, it runs, but I can't get it to accelerate.
  15. W

    H.O to Renix

    I tried that, it just gets worse.. I'm about to see if a match will fix it..
  16. W

    H.O. flywheel on a Renix

    Does anyone know what that would cause or if it will even start?
  17. W

    H.O to Renix

    It has great fuel press, and timing is dead on... any advice?
  18. W

    H.O to Renix

    I was suspecting the fuel pressure.. I didn't get a reading that high, but i had to make an adapter for my guage, I will buy the right one from Snap-on tomorrow and post what i found. Thanks for all the posts...
  19. W

    H.O to Renix

    Yeah, I used everything off of the Renix engine, the knock sensor look rough, but i have seen them run without them before.. i cant figure it out
  20. W

    Renix to H.O. question

    I would stay with the Renix manifold..
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