So. about 2weeks ago, my truck wouldnt start... then today it started fine with no problem (yes two weeks is long to let something sit, but no time to look at it..) Tried to move my truck, put it in gear and gave it gas, then after letting the gas go. it died and then it fired up no problem. has me and my buddy stumped as to why it dies after giving it gas and letting it go back down to idle... dies out at about 1000rpm. my truck idles at around 650rpm. we are thinkin its something with the fuel pump cause you can hear it whine standing outside the truck. please help.