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Old 06-26-2015, 06:49 PM
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2001 jeep cherokee 4.7

jeep was running bad so i changed plugs and air control valve !!!! idles rough at idle but when you give it gas drives fine

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Old 06-26-2015, 06:56 PM
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Re: 2001 jeep cherokee 4.7

Welcome to the garage.
Does it always idle rough, warm and cold?
You changed the idle air control stepper motor, but did you clean the air canal as well?
Did you use the standard copper core plugs? Jeeps donīt like fancy plugs. Did you check if there is any fault code set? You can do the keydance to check: ignition switch off/run three times and leave in run at the third time. The odometer will show DONE when all ok, or a fault code(s).
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Old 06-26-2015, 07:02 PM
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Re: 2001 jeep cherokee 4.7

cleaned whole thorottle body put champion plugs in it hot or cold dont matter
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Old 06-26-2015, 07:10 PM
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Re: 2001 jeep cherokee 4.7

no codes
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Old 06-26-2015, 07:13 PM
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Re: 2001 jeep cherokee 4.7

any ideas as what to check now
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Old 06-26-2015, 11:53 PM
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Re: 2001 jeep cherokee 4.7

How where the old plugs looking, any with a different color? Can be a dirty fuel injector(s), which causes a bad spray pattern.
You could try some seafoam in the gastank and see if that will do any good.
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