Ok i've got a bad feeling about it cause its not a lifter tick and it only has 45k on it.(only about 500 of it from me) Car drives fine and engine / trans feel good(aside from cruise control locking(unlocking it w/o reason) I dont have a scanner / tuner yet but theres no SES light.
Engine - Stock w/ Wizair - running 93 Octane @ almost sea level
Sound - Almost like an exhaust leak but more muffled....or light scratching - it doesnt really sound like metal on metal but if it is its minor. sound isnt noticeable from inside w/ windows up.
EDIT - Went out and remote started it and remote killed it while listening to the bottom end.....could hear it slow down and kind of clunk before it stopped...my guess is rod-crank bearing.
Symptoms
Its very noticeable when first starting it up, seems to go away once it gets warmed up.
It sounds to be coming more from the bottom end, either the trans or rotating assembly. Maybe power steering pump....but i doubt it sat in park and turned the wheel back and forth and it didn't change. A/C Compressor on / off didnt change sound other than engine load / rpm adjusting. There is a squeak in the alternator at start up but it doesnt feel rough.
I switched it to 10W30 Mobil 1 synthetic from 5W30 due to the warm climate. The oil is good and it has about 500 miles on it - the oil is still clean on the stick but smells a little gassy.
Guess ill be driving the Olds until i get a diagnosis.....just installed the fanceh head unit in it too....so much for the headers i was planning on getting>=(
