My car (135K / mostly stock) recently dumped all its oil very suddenly while driving city streets. looking under the car there is a fair amount of oil around the engine mounts just behind the bottom of the engine. I poured some more oil into the car and it dripped out of that same area a moment later. I'm hoping its something not so expensive like a the oil pan or some kind of plug. Are there any common culprits I can inspect? (it's an oil stained mess and I can't tell what's going on down there) I thought I heard a knocking or abrasive noise which would mean game over for my engine, but the engine continued to run fine (but hot) after the oil leak and the noise stopped.
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Re: 2002 impreza RS Major oil leak
If you heard a loud knocking.....I'm sorry to say, I'd hope for the worst. It doesn't sound good that you lost that much oil.
But try to clean it with a steamer or with some brake clean. Put a little oil back in and see where it is coming from. If it runs out without starting the car.....then you have definitely cracked the block, or the oil pan.
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some cars have a plastic/rubber drainplug..occaisionally this will come out of its hole..also look under the car for a ripped open oilpan.. this happens when the car bottoms out on city streets..may take 2 people to find the leak..is the leak new oil or blackened oil.. put a clean cardboard under the car to see how much and where it comes from..
Have the engine pressure washed then change the oil and install dye that glows under a UV light, then put the car on the lift and look for oil leaks after you drive it about 25 miles. Yes this is best left to a shop as the light is about $100.00 and the dye about $5.00. You can do the pressure wash top and bottom of engine at the car wash
Sorry to hear your bad news. Sounds like a major oil leak. First some introductory look sees. Looks for oil leaking near the filter. Did you recently have an oil change? If no - what is the mileage? To make a through diagnosis and repair you will need to get under the car most likely. I would STOP driving the car NOW. Get some jack stands and jack the car up and put the stands under it in a SAFE place. The owners manual will help to show you where your model is meant to be jacked and braced. Wipe off all the oil you can and inspect for oil leaks CLOSEST to the FRONT of the car as wind will blow it backwards. With a high mileage car and the oil light or check engine light coming on. Check for oil leaks at the line - the oil pressure sending unit and the oil filter. These are the most common. If not one of these. Try to fill the oil again and if there is plenty of oil in the car - start it and lay under the car CAREFULLY and see if you can find oil escaping from somewhere on the engine. Also take your vin numbers down and call the local dealer to see if there is a recall on your particular car that somehow effects the problem your having it can save you thousands.
Hope this helps you get your car repaired and running again.
get the oxygen sensor checkde out and the maf sensor...sounds like a vacuum leak too...Stop driving it and get it looked at ..if you dont see any loose hose's that are small in dia.. .then check those 2 sensors i spoke of ....