Brown sludge in engine

[Bigbearnj]

Today i bought a Non running 2000 Tahoe from an auction. it doesnt turn over so i checked the oil (before checking if the engine was seized) and found brown thick sludge on the dip stick. so i pulled the plug and started draing the engine. While it was doing that i took a look at the intake filter and the same brown sludge was in the filter and the pipe leading into the engine but not going the other way out of the engine (so it came from the engine) my thought was that maybe the air intake gasket had blown and alowed coolant into the oil. At this point i checked to see if the oil (sludge really) was done draing and it was still going but was at the top of my 12 quart bucket (where is this all coming from) so i switched the bucket and its still going and is about another 6 qaurts atm filled to give you and idea this brown sludge is the color and thickness of brownie batter but smells like oil?...anyone have any ideas ?

 

[hdrox88]

What does the coolant look like? Any evidence of flood damage?

 

[livingez_123]

Water. was it in a flood?
someone ran it with a lot of water in it. I'm sure the bearing are toast.

 

[Bigbearnj]

What does the coolant look like? Any evidence of flood damage?

No signs of flooding ....best i can tell is the intake gasket went and the previous owner kept dumping coolant into it not knowing where it was going and then tried some type of sealent and thats why it was so thick.

 

[undy]

Time to jerk the engine for a tear-down and rebuild. Anything short of this will be a band-aide at best. It could be a blown head gasket or several other things.

As mentioned before, pretty much guaranteed that your bearings are toast with possible crank scoring. If you drive it you're in danger of throwing a rod or another catastrophic failure.