Misfire
11-05-2009, 07:29 PM
#1
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Year: 1998
Model: Cherokee
Engine: 4.0
Misfire
Newbie here with a 98 showing code 0301 which is #1 cylinder misfire.So far I have put on plugs,wires,cap,rotor.Replaced #1 injector.At one point it will run great for a week then the light will kick on and the misfire is there for a few days then misterously goes away.Usually starts missing right after i hammer on it pretty good 4-5,000 rpms.This is the only item I still need to address yet I have only owned this for about 4 months and is starting to really annoy me 
so any help or suggestions are appreciated.Thanks
so any help or suggestions are appreciated.Thanks
11-06-2009, 08:59 PM
#5
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Year: 1998
Model: Cherokee
Engine: 4.0
the plugs r gapped @ .035 no problem there.2ndly im not abandoning my thread.Im no mechanic but the plug appears to be dry and not gettin enough fuel
11-07-2009, 04:42 AM
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Year: 2000
Model: Cherokee
Engine: 4.0 S 205k miles
Fuel injectors can cause a misfire.
Since your plug looks dry, I would be looking at the fuel system which includes the injector itself. Swap the injector into another position and see if the MIL code changes.
Since your plug looks dry, I would be looking at the fuel system which includes the injector itself. Swap the injector into another position and see if the MIL code changes.
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