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2006 Ford Explorer Question: When accelerating from a cold start, it sputters a little

 

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acarrier, 4.0L V6 SOHC, Keene, NH, July 16, 2013, 17:14
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Only when it has a cold start (overnight or many hours) it sputters for a few seconds as then is fine. If I cold start it and leave it to idle for a minute it is fine. I do notice that it takes a second longer to start normally, almost like there is a gas line pressure problem, but no dashboard lights like an evap sensor code or something. Any ideas?

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    Justin Case Auto from Justin Case Automotive Repair, Inc., July 16, 2013, 19:26
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    Sounds like it might be a cold vacuum leak. May need to get the engine smoke tested to confirm where.

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