It was working fine and the next day I used it I felt the truck heavy, it didn't have the normal acceleration, and then I realized it didn't have the power to go uphill, it went sluggishly and when the revolutions go up it started shuddering. With the scanner it showed errors P0755, P1747 and P0743, I was told it might be the gas pump, but the failure continues. It's a 2008 mexican Ford truck, 8 cilinders and 4.6L engine with automatic transmission.