Aftermarket Ignition System -
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Unread 11-27-2011, 04:26 PM   #1
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1996 XJ Cherokee 
Join Date: Aug 2008
Location: 41.325203,-74.794091
Posts: 87
Aftermarket Ignition System

Anyone ever install an aftermarket ignition system? An MSD ignition module and coil to be more specific.

Kind of curious where you mounted everything and I'm unsure of where to connect my 12V switch source.

If you have any experience with them post it up.


96 Cherokee lifted, shoes, blah, blah, blah
89 YJ stock resto project

Coal Region 4x4
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Unread 11-27-2011, 05:16 PM   #2
It's the crank sensor!
tjwalker's Avatar
1999 XJ Cherokee 
Join Date: Nov 2007
Location: Central Minnesota, MN
Posts: 8,705
I have seen more flops with this than success stories. The reliability of the MSD electronics is surprisingly marginal. Early failure is not unusual.

My advice would be to stick with the stock system; it is all the ignition that the Jeep 4.0 engine needs.....
99 Cherokee, 4.0 AW4, NP242
Past Jeeps: 49 Willys, 81 Scrambler, 88 Comanche
Without "data", all you have is an opinion!
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ignition , ignition module , performance

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