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2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 12-31-2007
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after swap

i just replaced the motor that was blown in my truck its a 3.0 flex fuel and put the same motor in it. itll will start fine but right when u tap the gas it shakes a little like a miss fire or something it does seems to run fine its just when you tap the gas pedel. anyone know what might cause this?
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Old 12-31-2007
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Need more info - year of truck, year of engine swapped..
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Old 01-01-2008
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Yes, more info would be helpful. By the way, Fred from Rogue Performance ("Fredness") is THE expert on 3.0's.

Could be something with the MAF depending on the year. 1998's have a limp mode that might help you diagnose it. Unplug the MAF and see if it runs better. If it does, chances are you need a new MAF. My daughter's 98 was like that and I ended up replacing the MAF on hers.
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Old 01-01-2008
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flex-fuel, bad injector..

you need a "live data" scanner to check for injector faults BTW
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Old 01-01-2008
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Normally there are issues like this when FFV PCM meets non-FFV injectors>
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