I have a mitsubishi showgun 1998 2.8 glx lwb auto now and again it cuts out on me when it does this the power dies on me then it cuts out. i turn it over two or three times pumping the accelretor and it fires up when it goes somtimes it still will not rev-up it is flat then cuts back out other times it goes and that could be fine for two to three days i have renewed the fuel tank and fuel lines and also the fuel filter whhat can be wrong.