My friends gmc truck started running very rough and in 2 days he couldnt get more than 15 mph. I changed plugs, wires and fuel filter and it didnt help. It almost seemed to get worse. In park or neutral you can rev it up and it runs rough but under a load, like in reverse or drive it goes nowhere. He doesnt maintain it well at all. He doesnt drive much, maybe once or twice a week, and not far. Any ideas or sugestions would be very helpful. Thank you
have the same problem?
Friday, September 18th, 2009 AT 10:05 PM