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Old 03-22-2007, 11:53   #1 (permalink)
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Fuel/Throttle problems

My 2006 Ranger (2WD, 2.3L) has had a sticky gas pedal for a while. The stickiness prevents me from increasing the RPM by just a small amount, so every application of gas is a slight rev. One time I turned the engine on and off a few times and noticed that the stickiness only occurred with the engine running. The problem is intermittent. Usually it's sticky, sometimes it's not.

One time getting on the highway I pushed in the clutch and let off the gas to shift into a higher gear. When I did so the RPM surged to 2000 or 3000 (with no pressure on the gas pedal).

Yesterday I drove several times with no new problems. In the evening I started the truck; it ran for about five seconds then quit. Thereafter it would not start. The engine cranked but would not fire at all. I tried about three more times with no success. I tried again a few hours later, still no start.

After the car sat overnight, I was able to start the engine this morning with no problem. The gas pedal didn't feel sticky either (not sure if that's related or not). I took it to the Ford dealership in town (it's still under warranty--less than 10K miles) and they couldn't find a problem other than a computer message about the fuel circuit tripping or something. They said their best guess was something to do with wiring, so they cleaned and checked some wiring but still didn't find a problem.

I'm worried that this problem will rear its head again at a less convenient time. Any ideas on what might have caused this?
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Old 03-23-2007, 20:18   #2 (permalink)
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Re: Fuel/Throttle problems

Does that have an electronic throttle? My 05 F-250 does but I have never had problems with it. Road tractors were using them several years ago. If it has a bad sensor on the throttle it would do these sort of things. My thinking is the engine wont start if the computer senses the throttle open. After sitting for awhile it finally closed. I would have to say it was a throttle sensor sticking. It may loosen up a bit and be fine. Or of course it might go out. Good thing is your covered, bad thing is, if it does go out, it will be at the most inconvenient time you can think of.
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