Mysterious Oil Pan Findings

ivin74 · Sep 25, 2024

Those are pieces of a broken lifter, you need to remove the heads and inspect the cam. I would not do any other work until you inspect top end of the engine. You may wanna just rebuild the entire engine depending on how many miles are on the suv.

I had the same thing happen to my son's truck. Look at the pictures on thread 52

04 Silverado started knocking, what could it be? Rebuild started

That sure is PURDY!

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mikez71 · Sep 25, 2024

It was running fine before? (minus low oil pressure?)

If the cam was replaced already, he's good.

If not replaced, he will have to pull the head when failure and replace cam and 1 lifter?
If he does it pre-emptively, he's only saving the cost of 1 lifter.
But if it's OK, he's buying a new headgasket and headbolts for nothing?

I say run it! But I'm occasionally reckless and always lazy..

j91z28d1 · Sep 25, 2024

I've had the oil pan off an ls, and with an inspection mirror you can see all of the cam lobes from the bottom. I checked my ls3 car when I did the oil pan gasket.

I still think this was a previous rocker arm issue they replaced. but it's worth looking up at the cam, even thou it's new and pulling the valve covers to check it's not currently broken. if so, replace the bearings with the bushing kit is the most common upgrade

Geotrash · Sep 25, 2024

mikez71 said:
It was running fine before? (minus low oil pressure?)

If the cam was replaced already, he's good.

If not replaced, he will have to pull the head when failure and replace cam and 1 lifter?
If he does it pre-emptively, he's only saving the cost of 1 lifter.
But if it's OK, he's buying a new headgasket and headbolts for nothing?

I say run it! But I'm occasionally reckless and always lazy..

Not reckless at all. It’s exactly what I would do as well.

Mysterious Oil Pan Findings

ivin74

05 NBS Nali

04 Silverado started knocking, what could it be? Rebuild started

mikez71

Full Access Member

j91z28d1

Full Access Member

Geotrash

Dave

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