I purchased a 2002 XLT a couple months ago now I'm having intermittent starting issues. I'm not sure if this is related to the cold weather or what. I don't believe it's a problem with the battery or starter. When I turn the key it sounds healthy and wants to start but won't start sometimes. Other times it fires right up. I've done a little research online, some suggest it could be the fuel filter, spark plugs, fuel pump, PVC valve, etc. Anyone experience this issue? Have any thoughts for how I can fix this without taking it to the shop for some expensive repair?