AE112 Rattling Noise

[Timmo617]

Hi,
I own a ae112 2000 Toyota Corolla and recently it started making a rattling noise (see video). I haven't changed the oil in about 6 months and have done over 5000kms since then so it must be a oil issue. Since I last changed the oil (Sep 2017) the oil light kept coming on, it flickers when it comes on. It makes the noise more prominently when I change gears while driving. Any help as to what is causing the noise will be appreciated, thanks.

https://www.youtube.com/watch?v=De5PDY7NI0M&feature=youtu.be

 

[campbeam]

Unfortunately, the video is not available. The oil light flickering on is an indicator of low oil pressure. Have you checked the oil Level? If it is correct, then I would be suspecting that the oil pick up screen is partially blocked with oil sludge. I would be inclined to warm the engine then drain the engine oil. Replace with about 4 litres of diesel and let the engine idle [no revving] for about 5-10 minutes. Hopefully, the oil light will not flicker on while the diesel is cleaning up the engine. Drain diesel and replace with new engine oil and filter.

If the oil light is still flickering on, you will need to drop the engine oil pan and clean the pickup screen on the oil pump.

The rattling noise could potentially be worn engine bearings. You could try using the following product which I have used for a number of years as a preventative measure and I have bought from this eBay seller a few times.

https://www.ebay.com.au/itm/XADO-EX-120-Gel-Revitalizant-for-gasoline-and-LPG-engines-SET-3-pqs-SUPER-PRICE/121561845664?epid=1527552949&hash=item1c4da68fa0:g:cZwAAOSw3xJVVlSR

[Timmo617]

Thanks for responding. I changed youtube video from private to public maybe that was the problem sorry. I hadn't checked or changed oil in a while so there is no oil in the engine, at least it's not reading on the dipstick. Although, I don't think that's the reason that the oil light kept flickering because it still happened when I did put some oil in a 6 months back and continued to do so since then. But I would think that it's something higher in the engine that would first be affected by low oil level. Could it be the timing chain causing the rattling noise? Or maybe loose tensioner? is it even possible for the car to run with a loose timing chain?

[campbeam]

Most likely, your engine has been affected by oil starvation and has accelerated wear.

Oil Starved Engine

https://www.youtube.com/watch?v=h88PdTIh_I4

How lubrication works

https://www.youtube.com/watch?v=mmmcj53TNic

Oil Pressure

https://www.youtube.com/watch?v=8f2fcbTh5yw

 

[Timmo617]

Thanks for your response. What can I do about it? How do I find out how bad it is and if it's still fixable? What specific part/s should I be looking at that would point to the rattling noise or any other signs of damage done?