No Spark issue still cranks...tunnel vision and stumped. -

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post #1 of 6 Old 09-03-2011, 01:20 PM Thread Starter
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1996 XJ Cherokee 
Join Date: Feb 2011
Location: Chicago
Posts: 2
No Spark issue still cranks...tunnel vision and stumped.

So here it is..1996 xj 4.0 with 240,000 and was running strong until recently.
Had it running, threw it in reverse and it died out with no stumbling just quit.
Jumped to conclusion and replaced cps and no luck starting again. Found out it was fuel pump and replaced and now its getting gas again but now there is no spark. Checked coil and that checks out good on the ohm meter. Pulled distributor cap and rotor is spinning as well. Swapped asd relay and still no luck. Next thing to do is light test all the fuses and tomorrow I'm going to try and throw a scan tool on it.

When I bought my new cps it was the right sensor but the wrong plug. So I spliced the plug with the correct one and installed with still no spark and I put the old one in just for kicks and still the same symptoms.

Any insight would be greatly appreciated!

Hahnz is offline  
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post #2 of 6 Old 09-03-2011, 01:23 PM
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2001 TJ Wrangler 
Join Date: May 2008
Location: Tyler, TX
Posts: 892
I'm having the exact same issue! I've replaced the CPS, and swapped the ASD relay as well. No fire coming from the coil. Sporadic voltage to the coil. I'm gonna try replacing the coil. (I have a spare)
The distributor shaft has a lot of play in it, and I'm wondering if the Camshaft position sensor in the distributor may be bad and causing the PCM to not send a signal to the ASD to power the coil.

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spdcat01TJ is offline  
post #3 of 6 Old 09-03-2011, 01:30 PM Thread Starter
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1996 XJ Cherokee 
Join Date: Feb 2011
Location: Chicago
Posts: 2
I'm just boggled that the fuel pump goes out and all of a sudden I have a spark issue...what are the odds???
Hahnz is offline  
post #4 of 6 Old 08-04-2012, 12:19 PM
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1987 MJ Comanche 
Join Date: Jul 2012
Location: Harlan
Posts: 168
Ive heard your ignition coil can get a bad ground, I don't exactly know how to fix it though.
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post #5 of 6 Old 08-04-2012, 12:41 PM
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1999 XJ Cherokee 
Join Date: Oct 2011
Location: Knoxville
Posts: 1,587
Do your reverse lights come on when you shift it into reverse? have you tried to start it in neutral,or jiggled your shifter around to se if it will start.If any of this is occurring you may neeed to either clean or replace your Neutral Safety switch NSS
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post #6 of 6 Old 08-05-2012, 10:19 AM
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1987 MJ Comanche 
Join Date: Jul 2012
Location: Harlan
Posts: 168
Yes, my NSS is fine I believe its my ignition control module, because I have power going to the module but none coming from the coil.
87manche17 is offline  

no spark

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