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2.3L & 2.5L I4 Tech General discussion of 2.3L and 2.5L I4 Ford Ranger engines.

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Old 04-16-2007
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Rough Idle

If I rev the engine up like 4k or something, and then let the rpm fall to idle, it goes down to about 600rpms, and idles like its got a big cam in it. After you tap the gas, it will idle at normal idle speed and idle smoothly. Why does it do that?
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Old 04-18-2007
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anyone?
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Old 04-18-2007
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Have you tried new spark plugs and cleaning the MAF?
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Old 04-18-2007
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Don't do that anymore and the problem will go away.
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Old 04-18-2007
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No, I havent changed the sparkplugs or anything.

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Originally Posted by Blackheart
Don't do that anymore and the problem will go away.
true, but I was wondering why it does it......I really dont think it should do that. Still, the rpms will drop down below its normal idle when im comming to a stop when I push the clutch in.......doesn't do it every single time, but it does it most of the time.
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Old 04-18-2007
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my ranger did that too every once in a while
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