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97 4.0 L

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Old Aug 21, 2012 | 07:06 PM
  #1  
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Default 97 4.0 L

No spark from coil replaced cam and crank sensors coil checks ok and power to green and orange wire along with steady light when cranking. any help would be appreciated
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Old Aug 21, 2012 | 08:57 PM
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Caracticus Potts The Mod
 
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From: Hainsville, NJ
Model: Grand Cherokee
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you tried arching the wire from the coil to the side of the block?, seems to me if your coil has power and signaled ground but doesn't have spark it's bad, and the other option would be a bad distributor cap and rotor
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Old Aug 22, 2012 | 03:12 PM
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Originally Posted by topher72
No spark from coil replaced cam and crank sensors coil checks ok and power to green and orange wire along with steady light when cranking. any help would be appreciated
Checked for continuity on grey and white wire all good must be bad ecm
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Old Aug 22, 2012 | 04:52 PM
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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Put a 12volt test light probe on the negitive primary wire for the coil and the clip on the positive battery post, then crank the engine over, the light should flash. If it is flashing and you still have no spark it could be a bad coil.
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