Finally got my car running good then i start hearing a ticking sound coming from front of engine like near water pump. i saw tiny bit of smoke started coming from drivers valve breather car started running like crap. shut it down. Now no start and a gassy mist/smoke coming from drivers breather when i crank it. timing chain looks like it didnt jump.anyone experience this have a idea what it could be. leaning towards cam or crank sensor but i just dont want to buy 1 or the other and not have the problem solved will no longer start either