My truck has started acting like it is missing. It doesn't do it when it is cold; but, when it warms up I will shift the gears and it starts to miss. I used to could shift it into fourth gear at 25 -30 mph, but now it seems like I better be going 35 before I shift. When I am going uphill I have a hard time keeping it going. I have replaced the spark plugs, wires, and the O2 sensor last year. A friend said it might be the fuel pump relay. Does this sound right?
Mar 25, 2008 at 3:28 PM