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Old 02-10-2010, 03:20 PM
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I-6 question??

could you please tell me which cylender is 3? I get a p0303 code which is misfire on cylender3 which one is three?? Thanks!!
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Old 02-10-2010, 03:41 PM
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Re: I-6 question??

im still searching, but i would start with removing all plugs and cleaning them. you should never just do one
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Old 02-10-2010, 03:50 PM
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Re: I-6 question??

ive changed all 6. after 2 days i got a misfire on 3 code again??
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Old 02-10-2010, 03:54 PM
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Re: I-6 question??

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Originally Posted by tju4u View Post
ive changed all 6. after 2 days i got a misfire on 3 code again??
Is number 3 counting from front of engine ??
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Old 02-10-2010, 04:17 PM
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Re: I-6 question??

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Old 02-10-2010, 04:45 PM
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Re: I-6 question??

it could be a bad coil or something then. what plugs did you use? if they are new try swapping #3 with another cyl and see if the issues moves.
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Old 02-10-2010, 04:52 PM
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Re: I-6 question??

#1 cylinder is at the back of the motor. I think some carbon in the cylinder could have been knocked loose. Clear the code and see if the code reappears. If the code does reappear then pull the plug, make sure the plug has no cracks in it, that the plug is gapped correctly and clean it.
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Old 02-10-2010, 05:04 PM
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Re: I-6 question??

I thougth #1 was at the front?
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Old 02-10-2010, 05:35 PM
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Re: I-6 question??

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I thougth #1 was at the front?

not always it depends on the manufacturer.
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Old 02-10-2010, 05:38 PM
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Re: I-6 question??

Do you mean like a rough warm up my 4.0 had it for a while till I switch to Premium Fuel $$$
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Old 02-10-2010, 08:15 PM
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Re: I-6 question??

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Originally Posted by hemi.jon View Post
not always it depends on the manufacturer.
But with the I6 in the Grand Cherokee, I was certain that it was numbered from front to back. He seems certain that it is the other way 'round.
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Old 02-10-2010, 08:25 PM
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Re: I-6 question??

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But with the I6 in the Grand Cherokee, I was certain that it was numbered from front to back. He seems certain that it is the other way 'round.
Yes, it is front to back on the I6 WJ. I've had enough problems with my cylinders misfiring last year to remember that one WELL.
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