Since the cold has come around i've noticed when I first start my truck in the mornings or when i've left it for awhile in the cold the Oil temperature gauge doesnt work and then the "check gauge" light comes on but if I turn my truck off then turn it back on shortly after it'll be working fine..
Could it be a fuse thats a little dirty and it just does that sometimes or is this somewhat a regular problem in some rams?
I'm going to assume you mean the oil pressure gauge. It seems to me its a fairly common problem on the rams. My buddy had it on his 03 and my 04 did it. Just replaced the oil pressure sensor on both of them and all was good.