'02 4.0 SOHC Hot start problems | Ford Explorer Forums

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'02 4.0 SOHC Hot start problems

tedmc1

Member
Joined
January 20, 2017
Messages
38
Reaction score
10
City, State
Escondido,California
Year, Model & Trim Level
2002 Explorer XLS
I've been having an issue with my '02 XLS with a 4.0 SOHC. If I drive it 5-10 miles and then let it sit a half hour,and then drive it again maybe another 8-10 miles and let it sit for an hour, it won't start until 5-6 hours or until completely cold. Then it starts right up again.NO CODES. when it won't start I've taken a needle nose and pressed the schrader valve and lots of fuel pressure.Looked at a lot of posts about coil packs but most seem to be about earlier style coil packs. I took the coil pack off and there are some micro cracks around the outside but not on the top or bottom.I bought this sploder new in 02 and put all 137K on it,oil looks good,but coolant was changed 2 yrs ago and is not as clean and green. (combustion artifacts?). Engine runs and idle smoothly and has full power. Anyone have this problem....??? I get either a P0301 or P1151 about every 2 months,either I reset it or it goes away on it's own.New battery and cranks over like new.
TIA
Ted
 






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