02-08-2007, 12:25 AM
If you had a clogged fuel filter then I'd expect that you'd experience stumbling/misfiring, not simply less power. Also, that would probably have no effect on the ability of the vehicle to start. Is it fuel injection or carburettor? If the former, then there isn't a whole lot you can do to diagnose the fuel system at home. I would not replace the electrical stuff again. That stuff generally lasts many years and failures would show up in misfiring, not low power.