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07-01-2011, 07:42 PM
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#1 |
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Join Date: May 2009
Location: fairfield
Posts: 320
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studdering 4.0 WTF.......!
I have a 2000 tj with the 4.0, and lately its been studdering and jerking under a hard pull. I changed the #1 o2 sensor, which helped for about 2 weeks. But now its doing it again. Doesn't matter if its on the highway or city. If I lug the motor, it will fall on its face. And I have no codes either. Any ideas. Or suggestions?.......
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If you don't want it broke, don't let me drive it.... 
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07-01-2011, 09:12 PM
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#2 |
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Pure Bacon
Join Date: Jan 2007
Location: Trenton, Oh
Posts: 1,098
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if it lugs under load it sound to me like ignition , how old is the cap and rotor , coil failing ???
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07-01-2011, 10:25 PM
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barely breathing
Join Date: Mar 2008
Location: alexandria, ky
Posts: 889
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No dead cylinders i assume. How dirty was o2 sensor, and is new one dirtier than it seems it should be?
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my next rig will be on the trail before zuk 2.0 will 
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07-01-2011, 10:28 PM
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#4 |
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Join Date: May 2009
Location: fairfield
Posts: 320
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It doesn't have a distributor, just a big coil pack. Wouldn't that throw a code though for a misfire? Its fine if I wind it out, just cruising and rolling starts will make it jump.
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If you don't want it broke, don't let me drive it....
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07-01-2011, 10:52 PM
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#5 |
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Join Date: May 2009
Location: fairfield
Posts: 320
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It will idle rough sometimes in the morning for a few minutes
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If you don't want it broke, don't let me drive it....
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07-02-2011, 06:37 AM
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#6 |
Join Date: Feb 2007
Location: Kettering, Ohio
Posts: 811
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My 98 will idle rough some times and I wiggle the injector wires and it clears up.
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Hybrid Mode
