has spark no start
04-08-2011, 02:01 PM
#1
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Model: Cherokee
has spark no start
Im working on an 88 inline 6 and it wont start It has spark to all plugs (Not bright) And appearsto be getting fuel or smells like it anyway while cranking around only two or three times a stong fuel smell is noticed like its floodingany ideas would be helpful
04-08-2011, 02:04 PM
#2
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Year: 2004
Model: Grand Cherokee
Engine: 4.0 I6
if it has a spark like you say it does and isnt starting there is no fuel. if there was fuel getting in you would at least hear a couple cylinders pop. try the cam position. there could be valves stuck
04-08-2011, 06:56 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
You need a strong, blue, snapping spark. Yellow/orange/white indicates a weak spark, which may not be strong enough to start the engine.
The #1 cause of weak spark is a weak ignition coil. They can be tested for both primary and secondary resistances with a meter and a manual.
The #1 cause of weak spark is a weak ignition coil. They can be tested for both primary and secondary resistances with a meter and a manual.
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