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Sluggish Acceleration off-the-line when Warm
Pardon me if an answer to my problem has been posted somewhere already... I'm having difficulty searching these forums. (Server issues??).
Anyway, my '05 X's 6.0L PowerStroke accelerates from a stop (when warm) as though its turbocharger isn't spinning... either that, or like I'm dragging a 5-ton trailer behind me.
It's not so noticeable when cold... but when the engine is warm/hot, sometimes I pull out into traffic and am frightened by the lack of acceleration. Then I mash the pedal and the engine spools up and seems to finally get going.
Any ideas? This just ain't right for a motor with 560 lb/ft of torque.