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Ski
User
Sep 25, 2011, 9:10 AM
Post #1 of 10
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88 Jeep Wrangler
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My Buddy is working on an 88 Jeep Wrangler, It has the straight 6 Carbureted engine in it with Manual Transmission. The issue he is having is the engine will stay running when you turn the ignition switch all the way over but the second you release the pressure off the key the engine will die. He has replaced the ignition switch with no results. He has also replaced the computer and still nothing. He jumped over the key switch and still has not solved the problem... Does anyone have any other thoughts on this problem so he can get this resolved?
Thanks in advance for any Help..
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Discretesignals
Ultimate Carjunky
/ Moderator
Sep 25, 2011, 6:49 PM
Post #2 of 10
(3228 views)
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Re: 88 Jeep Wrangler
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With the ignition on, do you have battery voltage at the ignition coil?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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maddness13
New User
Sep 26, 2011, 3:08 AM
Post #3 of 10
(3219 views)
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Re: 88 Jeep Wrangler
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Yes there is power at the coil.
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re-tired
Veteran
/ Moderator
Sep 26, 2011, 7:30 AM
Post #4 of 10
(3208 views)
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Re: 88 Jeep Wrangler
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just to be sure . there is 12v at the + side of coil with the key in the run position?
LIFE'S SHORT GO FISH
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Discretesignals
Ultimate Carjunky
/ Moderator
Sep 26, 2011, 6:10 PM
Post #5 of 10
(3196 views)
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Re: 88 Jeep Wrangler
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This doesn't make an sense. Has your friend removed the ignition switch from the column with the wiring still attached and manually used a pocket screwdriver or equivalent to slide the contact bar in the switch to start the engine? Maybe there is a problem with the linkage in the steering column?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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maddness13
New User
Sep 27, 2011, 2:27 AM
Post #6 of 10
(3181 views)
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Re: 88 Jeep Wrangler
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The positive side of the coil had no power. I Think I have found the problem. The ignition control module. Found in the bottom of left fender under washer bottle. It looks like old ford brain box.I am installing a new one today. Cost about $120.00. I will let you know if this does fix the problem.thanks for the help.
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 27, 2011, 3:15 AM
Post #7 of 10
(3177 views)
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Re: 88 Jeep Wrangler
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That's a good way to throw away $120
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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maddness13
New User
Sep 27, 2011, 4:18 PM
Post #8 of 10
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Re: 88 Jeep Wrangler
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Good news ! ignition control module fix it thanks guys
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 27, 2011, 4:45 PM
Post #9 of 10
(3155 views)
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Re: 88 Jeep Wrangler
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Sounds like your testing was faulty because you said you had no power at the coil and that doesn't come from the Ignition module.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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