okay so heres a complete description. The car started surging at idle, eventually the check engine light poped on after a few days, i checked oil, it appears to be way low, even though ive had an oilchange
about 2 months ago or less. Checked the coolant reservoir, and the water level was normal, however it was pretty dirty, and after draining there was alot of sludge stuff in the bottom. Not sure what it is, thought it was maybe oil, however shouldnt oil float to the top? upon looking at the oil dipstick i did not notice any odd coloration or residue in the small amount of oil there. Guess ill have to drain it all out to really check.
No smoke in exhaust, so im ruling out any water in the oil though.
Will check codes tommorow, but thought id see what you people had as far as opinions now.
I poped a quart of oil in, to see if the check engine light would vanish.. it did not. But maybe it needs to be cleared first? After flushing and refilling radiator, and adding a quart of oil, i ran the car
for a little while in the drive way, and it appears to still be surging, i did not drive anywhere but just let the car idle in park.
That seems like alot of detail, hope someone can get some idea from it.
Also after draining i checked the bucket for oil, and although there was sludge i saw no rainbowishness, or any seperation of oil at top, only black sludge in bottom. However after refilling reservoir, i did notice tiny microdroplets of oily substance, ontop of new clean water, not sure if thats normal or not. Just praying its not a blown head gasket lol