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1809 Views 1 Reply 2 Participants Last post by  Mr Mac
Have a 2004 F150 when fist start up in the morning after the rpm comes down I get a rought Idle but as the engine gets warrm the idle is smooth. if I hold the rpms back up to 1000 when cold the rpm's go up and down a little but runs fine when warm. Had it in shop and could find nothing wrong except on #3 showed a miss when cold, replaced coil pack and plug but still the same. Help !!!!
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Welcome to the forum! Sorry I missed this the first go but I did address your question here.

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