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Old 06-27-2012, 12:24 PM   #1
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Jeep stalling at lights

As of late my jeep has been having problems where if the engine is warm it will stall out at lights. I just replaced the cap and rotor as well as wires and plug and the next thing im gonna do is either o2 sensor or fuel filter but does anyone have any other idea on whats causing this

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Old 06-27-2012, 03:14 PM   #2
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bad gas will cause this. vacuum leak.

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Old 06-27-2012, 04:17 PM   #3
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it has good fuel in it and theirs no vaccum leak in it. Its hard for me to explain it since It don't happen to me all but everyone else who drives it.
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Old 06-27-2012, 04:19 PM   #4
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does the YJ have an idle air control valve/screw? If so it may be clogged and needing cleaning.
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Old 06-27-2012, 04:35 PM   #5
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I also forget to mention it makes a sulfer smell
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Old 06-27-2012, 04:43 PM   #6
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sulfur smell could be either a bad cat or higher sulfur content in the most recent batch of gas when you filled up. If the cat is clogged, you'd get noticeable bogging down when trying to accelerate...possible issues stalling out. If the cat is monitored by a down-stream O2 sensor, it might trigger a CEL.

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