My 2006 4.6 Ford explorer doesnt want to start after driving for a while. It also stalls sometimes when coming to a sto. Ive took it to the same dealership 6 times and they say they dont have a clue. they swear its not the fuel pump. Ive changed fuel filter, PCM, spark plugs, a couple harnesses. What could it possibly. Its been going on for nearly 3 years now. It does start when sprayed withstarter fluid. I would really appreciate any opinions.

Asked by Jul 26, 2016 at 03:28 PM about the 2006 Ford Explorer Limited V8 4WD

Question type: Maintenance & Repair

winter time it runs fine. In the summer we have the most issues daily.

3 Answers

18,340

Is the problem consistent? Is it always hard starting when hot or at operating temp? Could be a heat related problem since it appears to operate properly during cold weather. Vehicles today operate on electronic sensors. If heat affects one it is hard to diagnosis if the vehicle is not experiencing the problem when checked.

The problem is consistent. Start right up every morning but after some running around I have to spray starter fluid. Dealership thinks it's "something small and stupid". They've done fuel pressure test when it was not starting but were getting normal pressures. Could it be ignition sensor or crank position sensor?

18,340

I had somewhat of the same problem with my 4.6 3V 2010 f-150. Occasionally it would stall while driving or refuse to start after I filled up with gas. It turned out to be the Evap solenoid pump mounted on the top of the engine near the throttle body plus another Evap sensor. I actually damaged it myself in the manner in which I was filling the tank. I was force feeding gas into the tank after the pump automatically clicked off the first time by having it click off two or more times. What I was doing was forcing liquid gasoline through vapor return lines leading to the charcoal filter which were sucked into the solenoid pump, destroying it. The fuel system in modern vehicles is a closed system so vapors are not released into the atmosphere. I do not know if the evap solenoid valve is the same on your 2006 as on my 2010, but the symptom sound almost the same. May be worth having the evap system checked out.

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