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Hi all, I apologize in advance if this topic is already out here, I haven't found quite my issue. My 2001 4.0 has had this issue twice - both times in 97 degree weather + where it's running fine till I park and go to restart it. On start, the engine is barely idling - 1000 or less RPMs (I think that's where it was.) I hit the gas and there's no rev response at all until time passes and or i keep pressing on the gas then it reluctantly reacts and gets to a normal idle. Then driving after this, it can be slow to respond to throttle or odd higher revs, then it starts running normal (so far) - it's throwing random misfire, and misfire on 1-3 codes - once with flashing check engine light. Thank you if you have any suggestions.
 

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