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Old 11-29-2006, 06:39 PM   #1 (permalink)
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Random misfire

Hey guys im new here. I just got a 89 jeep cherokee limited 4.0L. For some reason it didnt pass smog because its running rich. After hooking up a timing light to every sparkplug wire it seems that i have a random misfire. It has a brand new cap, rotor, and plugs. Sometimes if i warm it up, shut it off, then restart it, it starts fine but then bogs down for a second then dies. But then i go to start it again, and it runs fine. I also noticed that when i start it cold, and tap the gas it hesitates for a second then picks back up. The check engine light isnt on which kinda throws me for a loop. Any help is GREATLY appreciated. Thanks guys
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Old 11-29-2006, 09:21 PM   #2 (permalink)
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the kick down then back up is probably your TPS. might also have something to do with the miss
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Old 11-30-2006, 07:01 PM   #3 (permalink)
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Is there any way to adjust it? Sorry... i just got the thing and dont know too much about em. Maybe ill run through the connectors, and clean em out. Thanks for your reply
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Old 12-01-2006, 06:03 AM   #4 (permalink)
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My guess would actually be the coil. Sounds like what my CJ was doing before the coil went out.
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