4.0l stalling
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Freshman User
Joined: Mar 2003
Posts: 29
Likes: 0
From: illinois
4.0l stalling
i have a 2001 explorer 4.0l. when it is cold the first time it is started it dies only runs for a couple seconds. at the 3rd or 4th time you can keep it running by pedaling the gas. once it is ran for a few minutes it will idle on its own. the warmer it gets the better it runs. a month or so ago it was tuned up plugs, wires, fuel filter.the throttle air bypass valve was also replaced 2 months or so ago.thanks for any help in advance
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
Fuel pressure issue maybe? A fuel pressure test is always a nice thing to start with if you suspect a fuel delivery problem. For starters, try "cyling" the ignition key on and off a few times to allow the system to build pressure, see if that helps.
Otherwise, you might consider the Idle Air Control (IAC) valve, since it plays such an important role in all phases of "idle", including such things as starting, deceleration, and sitting at a stop light.
Otherwise, you might consider the Idle Air Control (IAC) valve, since it plays such an important role in all phases of "idle", including such things as starting, deceleration, and sitting at a stop light.
