Cylinders dropping out on highway - JeepForum.com

 
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post #1 of 7 Old 09-18-2013, 04:38 PM Thread Starter
Airjordan01
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1992 YJ Wrangler 
 
Join Date: Sep 2013
Location: Fall River
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Cylinders dropping out on highway

Hi guys! I just bought this 92 yj. Guy before me had it 19 years well maintained. He told me when I bought it that it needed a computer. That he had replaced a bunch of parts and gave up. I bought the computer truck ran much better as it was having problems starting and I had previously had to do the key trick when it acted up. So now at one problem seems fixed I have come across another. When driving typically on the highway but not always its as if all cylinders drop out. Either from fuel or spark. These parts were replaced right before I bought it. Cap, rotor, plugs, wires, coil, crankshaft sensor. I have replaced the computer and the tips. Problem still persists! Again truck will completely cut out for a split second then continue on driving. I'm in need of answers. Thanks!

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post #2 of 7 Old 09-18-2013, 05:07 PM
rambo3489
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1989 YJ Wrangler 
 
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I won't be much help but I would bet its spark. If the fuel is cutting out I'd think it would at least stumble a little before cutting out completely.

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post #3 of 7 Old 09-18-2013, 06:19 PM Thread Starter
Airjordan01
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1992 YJ Wrangler 
 
Join Date: Sep 2013
Location: Fall River
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Yeah I'm going to look into the stator/camshaft sensor inside the distributor. Not sure if that was changed out. Cap wires rotor and plug definitely are new. This is a nightmare. I have no codes either or check engine light.
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post #4 of 7 Old 09-19-2013, 07:47 AM Thread Starter
Airjordan01
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1992 YJ Wrangler 
 
Join Date: Sep 2013
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Bump! Come on guys I need some creative ideas!
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post #5 of 7 Old 09-19-2013, 08:07 AM
jeepguy85
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1987 YJ Wrangler 
 
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Location: Kingsport, Tennessee
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Do your gauges cut out when the engine cuts out? If so, I would look deeper into the computer. If not, I agree this is probably a spark issue. I would look at your coil first.

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post #6 of 7 Old 09-19-2013, 08:10 AM Thread Starter
Airjordan01
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1992 YJ Wrangler 
 
Join Date: Sep 2013
Location: Fall River
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Gushes

I'm pretty sure the only Guatemala that affected is the rpm. It drops a little and jumps right back up. Do you mean all gauges? It is a brand new reman computer.
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post #7 of 7 Old 09-19-2013, 08:19 AM
jeepguy85
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1987 YJ Wrangler 
 
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Location: Kingsport, Tennessee
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Yes all gauges. I have a buddy with a 2000 ZJ that had similar issues. He had his computer rebuilt and still had issues. I convinced him to buy a new computer and have it flashed. It cleared up his issues. His issue involved gauges dropping out every time it happened. It does not sound like you are having similar issues.

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"When Chuck Norris drives, Chuck Norris controls the radio..."
Quote:
Originally Posted by HurricaneRZA View Post
Mean Max created Chuck Norris with some spare parts, two trac bars and some differential fluid.
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crankshaft position , cylinder misfire , distributor , tips , tps

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