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    96 Jeep Cherokee runs fine then rough, then fine

    Well guys. the run like shit switch is still happening. The pcm definately did help other things though. Now the ses light doesnt come on anymore, all monitors cleared, Starts easier and runs smoother. But when you are driving down the road all of a sudden it starts bucking and jerking for...
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    96 Jeep Cherokee runs fine then rough, then fine

    Hi all. I have some news. Today I swapped out the pcm for a used one. Note this morning it did the spell twice before I did the swap. Tonight I drove it and I noticed 3 things right off the bat It seems like the engine spins and starts faster It runs smoother and lights all over seem brighter...
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    1996 grand cherokee NOT making me very happy.....

    It sounds to me like a bad battery connection either positive or negative. check your battery terminals
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    96 Jeep Cherokee runs fine then rough, then fine

    could you give me an idea of which numbers should match. Out of all the sets of numbers, 2 sets match. the large number and one of the shorter sets. I figured if solder joints were so common that I would repair it before I install it to make sure it is not still the same problem. MAybe I could...
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    96 Jeep Cherokee runs fine then rough, then fine

    Ok all. I have 2 things. I bought a used ecm from a jeep with the same year and engine, not sure if the trans is the same I have a few questions What other than the engine is controlled with the ecm? basically I am wondering if they are different between 4x2 and 4x4 models and same going gor the...
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    96 Jeep Cherokee runs fine then rough, then fine

    thank you so much. I just recently did the oil switch and pigtail due to the oil seeping through and pushing the grommet out. That is a good idea about the return line and the canister valve. No doubt worth looking into. I will try it next time I have it
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    Runs fine for 3 minutes, bad for 3 minutes, then fine. Like clockork....

    Have you tried replacing the Throttle position sensor. It may be going bad but not throwing a code
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    96 Jeep Cherokee runs fine then rough, then fine

    Hi all. Just wanted to share. Jeep is still having problem with run like shit switch, It does throw a catalyst efficiency cody sometimes so I am thinking replacing the cat and hoping for the best. I already replaced both o2 sensors to try to cure the code but neither helped or resolved the problem.
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    Last person to comment wins $20

    lol. How long does the forum plan to keep running? that may be the answer to who gets the 20.00:lol:
  10. R

    96 Jeep Cherokee runs fine then rough, then fine

    Thank you. I will look into that. It does still do it.
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    Cherokee vs Grand Cherokee

    the grand cherokee is very different. Rarely 2wd if even. Different body style. usually all power windows and locks. Basically luxury model compared to the cherokee. I like them both to be honest. the cherokee is simpler in design though
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    96 Jeep Cherokee runs fine then rough, then fine

    thank you. I was wondering about that. I wish I could monitor fuel pressure while driving it.
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    cherokee check engine/check gages puzzler

    sounds exactly like a charging system problem. as loads are introduced the alternator cannot keep up and things go berzerk. And the trans requires good voltage as everythiing is electronically controlled. I say before you do anything else. check all battery connections, check the underhood fuse...
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    96 Jeep Cherokee runs fine then rough, then fine

    should be good fuel. I have also run fuel system treatment several times. the jeep gets driven daily on highway and city. gets gas at least once a week. Thank you for the response
  15. R

    96 Jeep Cherokee runs fine then rough, then fine

    Hi all. I have searched this and am still stumped.I have a 1996 jeep cherokee 4.0L6 with the warner trans.It has a issue that I cannot figure out. It starts fine every time but completely randomly it will have a spell where it runs rough (very rough) and then it is gone.Basically you are...
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