1998 wrangler sputters and cuts out - JeepForum.com

 
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post #1 of 12 Old 03-04-2011, 09:25 PM Thread Starter
alexjfrench
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1998 wrangler sputters and cuts out

The problem I am having is when I start the jeep cold it starts and runs great, when I then shut it off and come back to it 20 minutes or so later and it is still warm and start it, it starts fine but when I put it in gear and go to drive away it starts to sputter and stall it wont shut off but close. However if i push down on the gas and get up to like 20 mile per hour it will quit and not do it again its fine after that. It does it really bad if you are just barley pushing on the gas if you floor it, it gets past it real quick and is fine. It is a 98 wrangler automatic and 4.0 no check engine light is on and there is no codes. I have read a bunch and a lot of people are having problems with the upstream o2 sensor and possibly a leaky injector does anyone have any thoughts thanks.

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post #2 of 12 Old 03-05-2011, 07:51 AM
1fastR
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How many miles on it? Any recent work/tune ups done to it?
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post #3 of 12 Old 03-05-2011, 11:16 AM Thread Starter
alexjfrench
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148000 i am not sure what has been done to it i just bought it as is. It looks as though the plugs and wires and cap have been replaced along with a exhaust manifold gasket.
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post #4 of 12 Old 03-08-2011, 05:47 PM
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My initial thought was/is O2 sensor but not positive.

Bump for you, maybe someone else will have some input.
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post #5 of 12 Old 03-31-2012, 09:34 PM
cori131
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i'm having the same exact problem with my Jeep, did you ever find out what was wrong with it?
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post #6 of 12 Old 07-12-2012, 06:35 PM
Wrangles
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Same issue

Folks, I have same issue. My jeep is 98, v6, and has 118k miles. I have done full tune up, fuel injector flushing, changing o2 sensor and still sputtering. Also accelerates on its own at times.

Any thoughts?
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post #7 of 12 Old 07-12-2012, 06:42 PM
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Quote:
Originally Posted by Wrangles View Post
Folks, I have same issue. My jeep is 98, v6, and has 118k miles. I have done full tune up, fuel injector flushing, changing o2 sensor and still sputtering. Also accelerates on its own at times.

Any thoughts?
VEE 6? You mean inline 6?
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post #8 of 12 Old 07-12-2012, 06:55 PM
noise_maker
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mine used to do that. Would start up fine but would be stupid when you stopped - real bad if you had been on the highway for 15 mins. Took me awhile to figure mine out - the temp guage never went above 215 either but replaced the thermostat and changed the coolant and the problem went away.
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post #9 of 12 Old 07-12-2012, 07:06 PM
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Quote:
Originally Posted by noise_maker
mine used to do that. Would start up fine but would be stupid when you stopped - real bad if you had been on the highway for 15 mins. Took me awhile to figure mine out - the temp guage never went above 215 either but replaced the thermostat and changed the coolant and the problem went away.
Mines 05 w/64000 surges bad @ start up till warms I thought might b injector prob or O2 sensor but seeing your post bout changing temp gauge I'll rethink it cuz mine runs bout 210 I just flushed an changes coolant put in Lucas fuel treatment for injectors running worse now. Any thoughts

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post #10 of 12 Old 05-20-2013, 01:04 AM
jeeper4lifeTj
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Does your RPM spike when you are having this problem
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post #11 of 12 Old 05-20-2013, 01:11 AM
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post #12 of 12 Old 05-20-2013, 01:28 AM
jeeper4lifeTj
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Yeah i know,
I had a similar problem FOR YEARS but my RPM's would spike.
It had all those codes too and I changed them all.
They worked for a while, then the problem would come back.
Then one day my oldtimer neighbor heard my misfire and came over.
Point is... He disconnected my crankshaft sensor and cleaned it, then he tightens up the end that connects to my transmission.
I HAVEN'T HAD THE PROBLEM SINCE
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