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Jake
Jake, Nissan Technician
Category: Nissan
Satisfied Customers: 3646
Experience:  Experienced collision repair technician, Pulaski Tech graduate and DSM hobbyist.
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The coil closest to the grill burned itself up (got very

Customer Question

The coil closest to the grill burned itself up (got very hot) replaced with new one. New one wanting to do the same thing. Have it disconnected. Doesn't run as well. Bad ignition control module?
JA: Have you checked the battery lately?
Customer: I haven't voltage tested it, but terminals are clean and have not had starting problem.
JA: What is the model/year of your Nissan?
Customer: 86.5 D21 4x4 with 2.4 liter
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Yes. I have only replaced the bad coil. But the new one is getting hot so I didn't want to fry it. Disconnected it.
JA: Anything else you want the mechanic to know before I connect you?
Customer: Just wondering if the ignition control module is the culprit.
Submitted: 1 month ago.
Category: Nissan
Expert:  Ivan Alvarez replied 1 month ago.

What is the model of your Nissan.

Customer: replied 1 month ago.
1986 D21 4x4 2.4i
Expert:  Ivan Alvarez replied 1 month ago.

I cant find a wiring diagram to this. How many wires run to coil?

Customer: replied 1 month ago.
three
Expert:  Ivan Alvarez replied 1 month ago.

Sorry but I still haven't been able to find wiring diagrams. I will release your question. Good luck.

Expert:  Jake replied 1 month ago.

Hey there, thanks for the question.

The ICM is not going to be the culprit for a single coil getting hot. The ICM merely is like a switch for the coils.

You need to check your grounds, especially if you have a ground to the transmission or the intake manifold.

I have seen hundreds of coils burn up on altimas from a bat battery ground to the transmission bellhousing.

regardless your issue here is likely a grounding issue.

Expert:  Jake replied 1 month ago.

If you need further assistance let me know, if not just remember to leave a kind rating please.