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Cylinder 2 missfire 1998 jeep cherokee sport inline 6

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Old 03-05-2011, 11:56 AM
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Default Cylinder 2 missfire 1998 jeep cherokee sport inline 6

Ok I'm having a issue with cylinder 2 missing and 1plus 2 circuit not connecting but it is and I've replaced the plugs twice the cables the rotor the distributor cap the ignition coil the battery but I still can't get a big spark the plugs ark is week and isn't burning all the fuel. And the cylinder has compression and the oil was clean but still changed it but u can still smell the unburn fuel in the exhaust need help suggestion something
Old 03-05-2011, 05:01 PM
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Post the EXACT codes here.

Your explanation isn't easy to understand. What does "1 + 2 circuit not connecting" mean??
Old 03-05-2011, 05:05 PM
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Originally Posted by r.odell98
Ok I'm having a issue with cylinder 2 missing and 1plus 2 circuit not connecting but it is and I've replaced the plugs twice the cables the rotor the distributor cap the ignition coil the battery but I still can't get a big spark the plugs ark is week and isn't burning all the fuel. And the cylinder has compression and the oil was clean but still changed it but u can still smell the unburn fuel in the exhaust need help suggestion something
It's tru the grammar is making it a lil hard to understand but anyways so, you've changed plugs, did you get same heat rating plugs as oem. Did you check plug gapping. Is the plugs oil covered, burnt etc when you check them out and yes please post codes. Hope someone else can add some stuff for you to help your rig good luck
Old 03-05-2011, 06:03 PM
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Cylinder 2 is misfiring and I'm getting a open circuit code for cylinder 1 and for 2. I replaced all the plugs gaped they correctly and added new wires new distributor new rotor and new ignition cool and new stronger battery all the other plug are working ok. Cylinder 1 2 and 3 are week while 4 5 6 are running strong
Old 03-05-2011, 06:17 PM
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Exact codes please. With OBD, the devil is in the details.

Google the codes. If the code is say P0320 google search on "P0320 + Jeep"

You are likely to get good information on others who have experienced your problem.

Do you have exact compression numbers? Spec for the 4.0 is 120-150, with no more than a 30 psi variation between cylinders.

You need data here and it needs to be specific and based on TESTING.
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