How low is the coolant jug?

This could indicate (along with your sweet smelling exhaust) that the UIM is degraded and needs to be replaced before it fills your motor with coolant.

ok so i changed plugs, wires, pvc valve, vacuum hoses that were bad, oil filter and oil, air filter, and its still doing the same thing...oh i forgot to mention earlier that my tensioner pulley moves quite a bit causing my belt to move frantically and squeak...any more ideas?