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11-29-2012, 09:51 AM
#1
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Year: 1989
Model: Cherokee
Engine: 4.0 L
no start
Hey ya'll watch this ! ok..I fixed a manifold problem (loose bolts causing leak) I had not realized the CPS had become unhooked and was checking the ignition system for lack of spark. I made contact between the ECM mount and the starter relay lead (battery) before realizing the CPS was disconnected. After reconnecting the CPS and ignition components I got a spark but it appears yellow and weak. No Start ! battery is strong and the CPS was recently changed. Could I have damaged the starter relay in a way that it cranks but does not allow enough voltage at the plugs? Or should I look in another direction....thx
12-02-2012, 12:56 PM
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Year: 1989
Model: Cherokee
Engine: 4.0 L
Found the problem. Apparently the spark was adequate. There are two conflicting diagrams for the firing order in the Haynes book and I had the plug wires out of order by 1 position. Thank you for the replies.
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