It's a '94 Suburban K1500 with ~215K. The motor has always run strong (not sure if it is the original, or has been rebuilt by previous owners) and showed no signs of any problems. Earlier this week it started ticking loudly on start up, but would smooth out after idling for a few minutes. Yesterday, I noticed that the oil pressure gauge pegged itself out on start up, but returned to normal after a minute or so of idling. Today, it did the same thing when I left the house, but on the return trip, the pressure wouldn't drop back down and blew the gasket on the oil filter. I went and got a new oil filter and replaced the old one (what a f***ing mess to do in a parking lot) and it did the same thing after only idling for 30 seconds. Needless to say, my truck is sitting in the parking lot at my brother's work. Hopefully I don't have to tow it home, it'd cost an arm and a leg with how far it is. Any ideas guys and gals?