Cylinder 1 misfire problem
05-31-2012, 06:11 PM
#1
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Year: 2001
Model: Cherokee
Engine: 4.0
Cylinder 1 misfire problem
Check engine light is illuminated, I scanned and it's a P301 (cylinder 1 misfire.) I replaced the coil pack rail, new injector and spark plug to no avail. It's still running rough and the CE light is still on. Anything else I need to look at?
I have a 2001 4.0. Thanks!
I have a 2001 4.0. Thanks!
05-31-2012, 07:44 PM
#2
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Read Post #15 in the following link. A buddy of mine fought the misfire codes on his 99, used different fuel additives and the like and only this solved his problem. We're assuming there was a small chunk of carbon umder the exhaust valve.
http://www.wranglerforum.com/f5/does...ork-66616.html
http://www.wranglerforum.com/f5/does...ork-66616.html
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