Oil light and rattling sound

[BrentonK]

Yeah gonna give it a go when i get back from work, that sounds easy enough, how do i go about flushing the engine though?

 

[gossie]

Yeah gonna give it a go when i get back from work, that sounds easy enough, how do i go about flushing the engine though?

You may not need to flush the engine????????? The oil may have been changed 7k ago and is looking good. It may well be a mechanical problem simply caused be wear and tear.

Check filter first. If it's covered in sludge as in thick grease then best to drop the oil out, leave it drain all day as it will be cold and will not run out like hot oil, as you are best NOT to fire up the engine for fear of costly damage.

There are many links to flushing engines like flushing fluids and using diesel oil............Do a search and make your own mind up. Personally I would be giving the motor several oil and filter changes over a very short period after a fast run to really warm it up. Of course this is if the engine is quiet????????

If the filter is clean looking it's up to you if you wish to change it and the oil or look at pulling the engine down.

What year is this VE? What engine is in it? How many Kms all up? Do the books show complete and proper servicing at least every twelve months or more often is best?

 

[gossie]

Okay okay. 2007 Omega. Just looked back at your first post.
3.6 engine, so if it's an early 2007 it could well be timing chain sorry to say.
Good luck and keep us informed.

 

[Micaxe]

Had a similar issue with my VZ alloytech, sounds like a sludge problem, check this link

http://forums.justcommodores.com.au...oil-check-engine-oil-warning-comes-off-4.html

 

[gossie]

Sludge can only happen because of incorrect oil used and not being changed often enough........Check your books and understand them for CORRECT oils to use, and change oil and filter at lease as GMH tell you to do or more often.
Oil and filters are just so much cheaper than new engines.

 

[BrentonK]

Ok just took the oil filter out, Doesn't appear to be to bad?

 

[gossie]

Does not look to be sludged, just a bit dirty from old 7,000km oil.

Fancy dumping the oil that's in it and filling it with good fresh stuff and add a new filter? FWIW I use 5-30 Castol Magnatec.
You will need about 7 litres to fill the sump. I buy 2 X 5litre cans giving me enough to purchase one only the next oil change. Don't overfill it, just to the top mark.

Bear in mind that may NOT stop the rattles, but might be a less than a $100.00 try. Good luck.

 

[BrentonK]

Alright will give that a go on thursday, so i assume if the rattle is still there after that, it's the timing chains?

 

[Micaxe]

Sludge will build up on the oil pick-up, oil won't even get to the filter & pump, hence the oil warning on dash

 

[redvxr8clubby]

Sludge will build up on the oil pick-up, oil won't even get to the filter & pump, hence the oil warning on dash

So apart from engine out and sump off, is there a way of clearing that sludge off? The OP said when he drove it around the block it only became noisy when he was on his way back. May be sludge as you say, or maybe other oil line blocked up somewhere, is there any way you can use an air line (not like Qantas) or something to try and clean out oil galleries and clear the oil pick up, then run flushing oil through it?