Bearing problem?

[JTS197]

Hello. I have a 2008 Tahoe 5.3. I changed the oil the other day and noticed a bunch of copper sparkling in the oil. Everything that I could find suggest it can be the piston bearings or main bearings, or the cam shaft bearing(?). I don't have any codes, and the oil pressure seems to be fine. The engine does hesitate or seem to lack any power. And the particles were not there the last time I changed the oil about 7000 miles ago.

I used Valvoline Restore and Protect when I did the last oil change; could that have caused anything?

Any thought of what the issue can be and what I could be looking at as far as repair costs?

Thanks

 

[OR VietVet]

The oil did not cause the problem. Would help to know the engine mileage. You said, "The engine "does" hesitate or seem to lack any power". Did you mean to say doesn't?

Best to take the filter and use the correct tool to cut it open and cut it so the pleats can be pulled out and look down in the pleats for material and then post the pics. If you changed oil the "other day" and noticed a bunch of copper then, why wait till now to post about it? Do you still have the oil filter?

 

[Foggy]

7000 miles is way too much on a dod/afm engine with vvt...
Oil cleanliness and pressure is Everything!!!!
It's def bearing material if it's like tiny sparkles
If it still runs fine, keep the oil changed way more often.. Install a magnetic
tip drain plug (won't catch non mag metals of course)

 

[JTS197]

The oil did not cause the problem. Would help to Yeah, I meant it doesn't.the engine mileage. You said, "The engine "does" hesitate or seem to lack any power". Did you mean to say doesn't?

Best to take the filter and use the correct tool to cut it open and cut it so the pleats can be pulled out and look down in the pleats for material and then post the pics. If you changed oil the "other day" and noticed a bunch of copper then, why wait till now to post about it? Do you still have the oil filter?

Yeah, I meant it doesn't. I still have the filter. I waited to post anything because I was trying to understand what I was seeing and what I need to potentially get fixed. The mileage is now "25600" with 1700 hours on the engine. It is a CBP Tahoe.

 

[OR VietVet]

Cut the oil filter open and spread those pleats and show the pics, But from what you are saying, does sound like bearing material.