4.0 Went Swimming Not Getting Any Spark

wtinchjeepthng · 10-27-2007, 07:13 PM

My 94 went swimming a few mounths back and would not fire. I have put on a new cranke pos. sen., coil, and pick-up in dis. I thought the computer was fried till I tried it in my dads 95 and it started right up. Any help would be great.

myoutboards · 10-28-2007, 06:13 AM

not sure if it helps, but my 92 4.0l had same prob and was the 30A fuse labeled IGN under the dash. it hd been shorting out.

i know its not the exact same thing, but it cured my no spark problem.

**rustywrangler** · 10-28-2007, 07:08 AM

1) welcome to the forum
2) Please fill out your rig specs in your UserCP so we know what you have.
3) Need more info on problem.
----Does it crank over?
----Does it just click?
----Is everything else electrical working besides getting no spark?
----Do you have power to the starter, power from starter?
-------If so, do you have power to the coil and from the coil?
----------If so, do you have power to the dist??

Kinda a break down of how the power travels.

wtinchjeepthng · 10-28-2007, 12:36 PM

crankes over fine, and i have checked all the fueses under the dash and the ones uder the hood are good also. i change the box style fuse under the hood with the one for the ac also to see if that would help.I will try to check the power to coil this afternoon. I got my profile up also thanks for the reminder

10-28-2007, 07:08 AM	#3
rustywrangler Got my eye on you..... Join Date: Apr 2005 Location: Syracuse, NY Posts: 18,657 Profile Gallery Classifieds My Jeeps	1) welcome to the forum 2) Please fill out your rig specs in your UserCP so we know what you have. 3) Need more info on problem. ----Does it crank over? ----Does it just click? ----Is everything else electrical working besides getting no spark? ----Do you have power to the starter, power from starter? -------If so, do you have power to the coil and from the coil? ----------If so, do you have power to the dist?? Kinda a break down of how the power travels. __________________ http://i131.photobucket.com/albums/p...k_banner-1.gif Congenital Heart Disease is a reality for me, BOTH of my children have it. Please read up and become aware for future generations Lydia Ann-Acquired 08/05/05 Open Heart surgery 08/10/05 Jacob Patrick-Acquired 01/17/08 Open Heart surgery 02/15/08

10-28-2007, 06:13 AM	#2
myoutboards Registered User Join Date: Oct 2007 Location: seminole, fl Posts: 7 Profile Gallery Classifieds My Jeeps	not sure if it helps, but my 92 4.0l had same prob and was the 30A fuse labeled IGN under the dash. it hd been shorting out. i know its not the exact same thing, but it cured my no spark problem.