Re: Sudden rough idle loss of power
Pull the tuner first and see what happens. Also the wiring that goes through the valve cover gaskets will also go bad over time and you'll end up with burnt and shorted pins in them. You can unplug them and see what the pins look like. There are 2 on each valve cover gasket.
96 F250 XLT 4x4, 4:10 gears, 5 speed, Tymar intake and HX hose, downpipe, pyro and boost guages, coolant filter, Luc clutch