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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 01-23-2006
optikal illushun's Avatar
I am: Kiel NotAChance
Join Date: Oct 2004
Location: Coal Region, MTC to be exact...heart of the coal region.
Vehicle: 2004 Ranger Edge/1993 F-150/1988 F-350
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only way to raise mpg is to raise engine efficeny. make the engine more efficent at burning the same amount of fuel and u'll see an mpg increase...an intake doesnt adhear to this rule.
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Old 01-30-2006
jdpartsman99's Avatar
I am: adam nieman
Join Date: Nov 2005
Location: osage,ia
Vehicle: 2002 Ranger FX4
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This info kinda bums me out, a performance intake kit was going to be the first mod on my truck. I think I'll still get one thought, for the power increase and/or coolness when the hood is opended.

02 Ranger FX4 L2
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Old 01-30-2006
a_shane2_go's Avatar
I am: Shane W
Join Date: Jan 2006
Location: Calgary AB (Canada)
Vehicle: 2003 Ranger XLT super 4X
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Could it be that your using the model of K&N? The 57 is only good until your model number. Its completely differnt from the newer cool air intakes for 2003+ rangers. Thats the only thing i can think of.
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Old 01-30-2006
vansnxtweek's Avatar
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I am: Mr Someone
Join Date: Feb 2005
Location: USA
Vehicle: 2000 Ford Ranger 4X4 Off
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I dont understand ya^^?..then again i might be a little slow.
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Old 02-05-2006
AeroDoc's Avatar
I am: Ted X
Join Date: Jun 2005
Location: Corona, CA
Vehicle: 2005 FX4L2
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Air intake is measured by weight (pounds). The fuel/air ratio is 1:14. More pounds air in, the more pounds of fuel required. Mods to improve breathing are "efficiency" gains; more power per crankshaft revolution, so naturally, they're going to use more fuel.

If you just added your intake, the fuel injection will take about 10 trips to recalibrate.

You might see improvements by doing maintenance on the fuel injection system: if you have more than 50,000 miles, you should replace both O2 sensors. If you use a K&N, clean the MAF element (use electronic contact cleaner, any residue will ruin it). Clean out the IAC (idle air control valve at the throttle butterfly)
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