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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 04-23-2008
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Icon4 Engine stumble when in park or neutral

I recenlty installed a K&N FIPK for my 2005 4.0 supercab Ranger. After installing I wanted to rev up the engine to listen for any odd sounds, and of course just hear how the new intake sounded. When the engine hits about 3000 rpm in park, or neutral it stumbles/misses, almost like it's going to die. The odd thing is that it doesn't do it while driving, I put the transmission in 1st(automatic) and went well over 3000 rpm and didn't feel or hear any hesitation/misses. I also accellerated quickly a few times(causing rpm's over 4000) over the past couple days and noticed nothing out of the ordinary.

Any ideas on this? Unfortunately I had never reved the engine in park or neutral previously to know if this has always been an issue.

Thanks
Jamie
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Old 04-23-2008
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try cleaning the MAF.
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Old 04-23-2008
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sounds like your talking about the rev limiter
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Old 04-23-2008
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Quote:
Originally Posted by My05edge View Post
sounds like your talking about the rev limiter
x2. There is a rev limiter at 3K in park or neutral. Ford puts it there because there are "cool" people in the world that like to floor it in neutral and dump it into drive to burn out because they don't know who to burnout properly.
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Old 04-25-2008
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Christian is right. Rev limiter. It's normal.
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Old 04-25-2008
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I agree I've done this and it's the rev limiter.
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Old 04-25-2008
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Rev limiter.

With my K&N, when the wind is REALLY gusty my truck will 'stumble' while sitting still.

Brenton
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Old 04-25-2008
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Is there a rev limiter on the OHV? It shifts at a maximum of 5500 rpm but I am pretty sure i can rev past 3000 in park.
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Old 04-25-2008
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I don't think there is a limiter on an OHV, my friend used to have one and his didn't have one.

Brenton
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