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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 10-02-2008
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1500 rpm

Whats up with this? When I start the truck cold, it idles at 1500 rpm for about a minute and a half and starts slowly comng down.
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Old 10-02-2008
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Mine does this also, i remember i read on here why it does it but i can't remember what it said lol
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Old 10-02-2008
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umm its called warming up all the trucks do it even my car does it.
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Old 10-02-2008
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It is a fast idle mode for the truck to warm up
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Old 10-02-2008
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warmup

Ok ,but should it be doing it when its 85 degrees outside? My other vechicles will fast idle only in cold weather.
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Old 10-02-2008
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Ya man, my 2.5L does it to even when it is warm out. I would not worry about it. I think I would be weird though if you truck had been running for a while, you turn it off, then turn it back on and it does that.
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Old 10-03-2008
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yeah my 2.3 does that so does my girls duratec taurus.....completely normal although i would let it idle down before shifting into gear....not good on tranny
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Old 10-03-2008
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believe even a little blip of the throttle will take it down to normal idle. my 4.0 does it...completely normal.
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