Are you throwing any codes? I had this issue when my truck was parked. It only got ran about once every couple of weeks and I didn't have any O2 sensors installed (no exhaust, only headers).

Bad O2 sensors might be making it run rich enough to wash the cylinder walls and get into the oil. I also second checking your injectors. Sometimes they'll throw an injector code. I think these are the two most likely options.

 

This^^^

Stop driving it until you figure out how/when fuel is getting into crankcase, and change oil and filter now. Fuel is not something you want in your crankcase. If it is that abundant, now, that could be what is leading to the "tick". Poor oil pressure, since thinner oil makes it hard for the pump to create pressure.

Do a quick check with a vacuum gauge (look for good vacuum reading and steady needle), pull plugs and inspect (marking location), and do a compression check. And have the codes read.

Good luck,

Brian.

 

Whelp, my motor is completely shot. Thanks for all the advice. Now I'm contemplating doing an ls swap

 

Care to tell us exactly what's wrong? Both for our own curiosity and for future readers?

 

 

Cool. Thanks