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  • Cylinder dropping out

    I got this 89 cherokee, cylinder number 6 drops out between 1500 and 2000 rpm under load..new plugs, good wire, got great spark from the distributor, Im thinking the injector is malfunctioning..Thing idles fine and runs great on the highway when there isnt a huge load on it.
    98 Cherokee, D30/8.25 w/4.56s locked F/R -- 3 link front IRO springs rear with shackle relocation, one ton steering w/heims, hybrid cage under contruction, 33'' KM2's

  • #2
    Any opinions?
    98 Cherokee, D30/8.25 w/4.56s locked F/R -- 3 link front IRO springs rear with shackle relocation, one ton steering w/heims, hybrid cage under contruction, 33'' KM2's

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    • #3
      I think you need to give the jeep to me.
      -Caleb

      Crawl Daddy Champion 2011

      1999 XJ 4 inchs of lift or so, 35s and some other stuff.

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      • #4
        im gonna guess MAP on this one since it drops out under load. go to www.lunghd.com for every renix tech doc you ever need

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        • #5
          Im goin to agree with adam on that.

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          • #6
            mine used to do that too and it was a TPS. there was a dead spot in the TPS. however i dont know if only one cylinder was cutting out or all of them. I caused a pretty shitty bucking until it reached a point. and it usually did it around 1500-2000. I would check both MAP and TPS

            97 TJ that I think is pretty neat.

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            • #7
              Ok ill deff it up the junkyard tuesday and grab another tps and map sensor, I did a compression check today and all cylinders check out..one was at 110..but its not one of the ones that was dropping out haha..but my symptoms sound exactly like what you guys were having.
              98 Cherokee, D30/8.25 w/4.56s locked F/R -- 3 link front IRO springs rear with shackle relocation, one ton steering w/heims, hybrid cage under contruction, 33'' KM2's

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              • #8
                when my map went out i got a nasty ass spark knock from 1500-2200 under load and had 0 power.

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