89 Cherokee no spark
07-08-2011, 09:08 PM
#1
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Model: Cherokee
89 Cherokee no spark
Hey guys, I have got a problem!!!! I recently pulled the engine, a 4.0 multiple point fuel injection engine. After the seal change and the oil pump rebuild I put the engine back into the vehicle. Everything seeems ok when I crank it over but there is no spark. The coil checks out the crank shaft position sensor was messed up (shorted and exposed wires) which I have replaced. The out put from the ECU seems to be ok but there is still no spark. Short of replacing the ECU, coil, ICM I cannot find any faults. Any ideals on what's going on?
07-08-2011, 09:12 PM
#2
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Year: 1992
Model: Cherokee
Engine: 4.0 I6 firepower ignition, cat-back w/ magnaflow muffler, poweraid tb spacer, optima blue top
Try checking your distributor cap and rotor. Also check the wire running from the coil to distributor.
07-08-2011, 09:33 PM
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Year: 1989
Model: Cherokee
Engine: 4.0
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