Misfire
#1
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Model: Cherokee
Misfire
I just changed out the head gasket on my 87 Cherokee 4.0 which blew from over heating. Now that it's all back together I seem to have a misfire. I've checked the firing order, timing, vacuum lines and plugs. I noticed that #2 cylinder plug was fouled black while all the others looked normal. Could this be an indication of a valve problem or is there something more simple that I can look for? Also, I'm not to sure about the vacuum lines, can anyone tell me where I can get a legible diagram?
Any suggestions/input appreciated.
Any suggestions/input appreciated.
Last edited by meandyb; 08-24-2011 at 12:35 PM.
#2
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Location: Elizabethtown, pa
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Year: 1994
Model: Cherokee
Engine: 5.2
could be a valve problem, I would check compression, Also a old school trick is to hold a napkin or something up to the exhaust while running, if it trys to "get sucked up" the exhaust, then it is probably a valve issue.
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