2006 Ford Explorer Q&A  2006 Ford Explorer Question: When
accelerating from a cold start, it sputters a little  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? - Answer 1 Sounds like it might be
a cold vacuum leak. May need to get the engine smoke tested to
confirm where. -