Bad coil?
#1
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Join Date: Oct 2010
Location: Michigan
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Year: 1993
Model: Cherokee
Engine: 4.0 I6
Bad coil?
I have had an issue with stalling on my 93 4.0. I replaced the crank position sensor, fuel pump, cleaned the the IAC and throttle body, and even tested compression. It fires up fine, i drive it about 5 miles, back off the throttle, and it dies. and then it wont get spark anymore. I pulled the plug off the back of my coil, pluged it back in and it fired up fine. Is there any way i can test my coil?
Thank you for your help!
Thank you for your help!
#3
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Year: 1999
Model: Cherokee
Engine: 4.0
You can test the coil with a meter and a manual for both primary and secondary resistances. But if it is a thermal failure, you would have to test WHEN the engine won't start; otherwise the data may be in spec.
Or you could swap in a new one and find out in a hurry. They aren't particularly expensive.
Or you could swap in a new one and find out in a hurry. They aren't particularly expensive.
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