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Old 05-20-2008, 08:49 PM   #1
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Default Rough idle 4.6?????

I have a question about my 4.6l. At idle its not running smooth and seems like a mis-fire?? with only 1500 miles i am concerned. Coming from super duty diesel to a gasser, i sure do miss that power that the 6.0l gave me.
But is there a fix for this mis-fire feeling or just normal. Only occurs at idle and rough at times. thanks in advance
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Old 05-20-2008, 09:47 PM   #2
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Welcome to the site!

IMO - one of the many great things about a V-8 is its ability to idle smoothly. With only 1500 miles, suggest to have a conversation with the dealer - certainly not a widespread problem I've heard of with the 4.6L.
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Old 05-21-2008, 06:50 AM   #3
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I have a 08 4.6L screw 2400 miles and have only put exhaust on it....no problems so far.
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Old 05-21-2008, 09:50 AM   #4
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i am not sure about the 08's but i know there is a pcm update for 4.6 rough idle
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Old 05-21-2008, 11:36 PM   #5
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Thanks for the info. I will contact the dealer to see if there is a flash and or have them to check it out.
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Old 05-21-2008, 11:36 PM
 
 
 
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