Help cars dying for no reason need imput!

[RayRay]

Oil just disapeared put more in, started srove for 3 mile znd died again. Wont turn over help me out guys

[CadenceScion]

Are you getting a CEL? Are you getting adequate oil pressure?

[BrandonL]

If you're driving without oil, there's a good chance your engine will lock up =/ I had a Buick that got a hole knocked in the oil pan on a road trip without me knowing. By the time I had to drive to work the next day, the engine was completely locked up and I ended up buying my Scion. Also, is there smoke coming out of your tail pipe? You might be leaking oil into the combustion chamber due to a bad gasket.

[connman429]

Burning that much oil in the course of three miles would make a smoke screen that would make James Bond envious. You need to get under the front end and figure out where that oil is going. A few places to start:

Oil filter and drain plug. These are the two components that are removed the most from the lubrication system, thus the highest chance that they are the point of failure.

Forward and aft crankshaft (aka main) seals. A rubber ring holding oil back as a steel shaft is rotating in it; usually doesn't fail on an engine this new, but it can happen.

Coolant tank and radiator. This indicates a leaking head gasket. The tC has an aluminum block; these are extremely susceptible to warping if overheated. Drain your coolant into a CLEAN bucket. If there is an oil slick on top, the head to block mating surfaces are warped, allowing oil to go from the cylinders into the water jackets inside the block.

You say it doesn't turn over. Put a socket on the crankshaft pulley retaining bolt and try to rotate it. You should be able to move it easily (20 pounds of force?) with a 1/2" drive ratchet.

[RayRay]

I changed the oil myself like 4 weekes ago/ 1500 miles i got home from wrk last night put oil in and it fired right up. Then died a 1/4 mile down the road. Ran a scanner on it, came back with O2 sensor, cam sensor, and crank sensor. So im leaning towards cam sensor being my problem. I think the oil is a different issue that im following up on.

[RayRay]

Also theres no oil in my coolent or smoke or anything unusual. Probably got a bad o2 sensor also judging by the way she been runnin

[navylife59]

Oil just does not disappear. You will know when your engine is out of oil either by the red oil pressure light on the combination gauge will illuminate or your start hearing squeak...squeak..squeak.SQUEAKSQUEAKSQUEAK and so forth till it just dies and won't turn over anymore. Yeah, it happened to me with my first hotrod; high mileage Ford 302 with phenolic resin cam gear that snapped the oil pump shaft. Our oil pump is timing chain driven so no worries there.

Did you, perhaps, check the oil level just after the engine was running? Oil will not have completely drained back into the pain from the oil galleries, head, and valvetrain. Another way to get an inaccurate level reading if the car is not on a level surface. Oiling issues would not set those DTCs that I know of save for the O2 sensor as oil can foul it. What specific codes are you getting. For what ever reason, don't run the motor until you are fully positive that you don't have a massive oil leak.

Sorry to have been offline so much. My main laptop went down and my backup has been having issues. I so need to go back to a desktop.