I am having an interesting issue regarding accelaration. Just past coupla days as I'm going along 1500rpm or so and go to give it a little gas- pedal just goes down no response. It doesn't sputter when this happens just drops out for a second or two and if I hold steady it will kick back in or if I STOMP or pump it, may jump to respond. A new fan clutch is on its way but don't think thats related. Does this when A/C is on or off. Has done this once or twice per daily trip around town past 3-4 days. Oil is clean, sent some off to blackstone for good measure and put in Redline fuel system cleaner. Any other thoughts??