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help no spark

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Old 12-16-2009, 03:06 PM
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Year: 1989
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Exclamation help no spark

98 cherokee 4.0 i6


I just changed out the coil and still no spark... I can hear the fiul pump running and it turns over just fine. But it won't start

I thank you for any help.

must fix soon so I can get to work
Old 12-16-2009, 03:10 PM
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no spark to any of the spark plugs? or just one?
Old 12-16-2009, 03:20 PM
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Check your cps,first unplug it and clean connector and clean pick-up on bellhousing and see if it helps,if not check resistance on terminals b and c should read very low or open.
Old 12-16-2009, 03:54 PM
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no spark at all... ill check the cps now. where is it?
Old 12-16-2009, 04:16 PM
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top left side of bellhousing,pita to replace,try and clean the pick-up with some electrical cleaner first and clean the connector where it plugs in.
Old 12-16-2009, 04:22 PM
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X 2, a bad (CPS) Crank Position Sensor kills your spark timing pulse and fuel injector fire pulse so you're most likely not getting spark or fuel to the cylinders. I hope cleaning it works for you. It costs right around $80 for a new one at your friendly neighborhood Autozone store.
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