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bigtom89 06-06-2013 05:37 PM

No spark!!!
 
Ok guys,
1988 Jeep YJ with a 4.2 that's been nuttered. 3 weeks ago I hit an exposed manhole that cause me to lose all power in the Jeep. I have replaces the fuseable links, ICM, coil and complete distributor and still no spark. The motor turns over but still no spark. I have pulled every fuse to make it was still good. Any suggestions, or ways to direct wire it?

123YJ 08-06-2013 05:33 AM

Quote:

Originally Posted by bigtom89
Ok guys,
1988 Jeep YJ with a 4.2 that's been nuttered. 3 weeks ago I hit an exposed manhole that cause me to lose all power in the Jeep. I have replaces the fuseable links, ICM, coil and complete distributor and still no spark. The motor turns over but still no spark. I have pulled every fuse to make it was still good. Any suggestions, or ways to direct wire it?

Dealing with similar problem (ie: randomly stalling out, will crank over but not fire up...and it's progressively getting worse). Replaced coil since I was getting no spark out of coil but still having 12 volts going to the coil. Negative lead to coil shows 35 ohms. My research indicates a bad ICM. Some have shared they bought a bad new ICM and replaced it several times.

I'm now looking into the HEI distributer, which eliminates the external ICM & coil.

cruiser54 08-06-2013 06:12 AM

Quote:

Originally Posted by 123YJ (Post 15761703)
Dealing with similar problem (ie: randomly stalling out, will crank over but not fire up...and it's progressively getting worse). Replaced coil since I was getting no spark out of coil but still having 12 volts going to the coil. Negative lead to coil shows 35 ohms. My research indicates a bad ICM. Some have shared they bought a bad new ICM and replaced it several times.

I'm now looking into the HEI distributer, which eliminates the external ICM & coil.

Get an HEI. They run so much better with it.

123YJ 08-06-2013 09:36 AM

Quote:

Originally Posted by cruiser54

Get an HEI. They run so much better with it.

Cruiser54,

Just ordered a CRT Performance HEI for my '89 4.2L I-6 an hour ago. Hopefully this will solve the problem.

Thanks for the suggestion.

Rick

cruiser54 08-06-2013 05:47 PM

Quote:

Originally Posted by 123YJ (Post 15762484)
Cruiser54,

Just ordered a CRT Performance HEI for my '89 4.2L I-6 an hour ago. Hopefully this will solve the problem.

Thanks for the suggestion.

Rick

You will not be disappointed.


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