The most likely cause of this is a blown head gasket dumping oil back into the coolant passages. The oil will mix with the glycol in the antifreeze and make a thick yellow paste. It is very important to flush the cooling system after the repair or this sludge will cause heating problems.
Yes, stop leak turns into a thick substance to plug any leaks, when it ends up in the overflow bottle it turns into sludge there.
Yes it does, it is there to prevent it from overheating
Could be a stuck thermostat in closed position, or defective water pump. Check by squeezing top thick radiator hose and feel for water flowing, when realising, you should hear a squeezing noise. And check if hose is hot.
The thick milky yellow discharge is nothing more then a infection.
The head is gone
yellow and black!! are you thick or what!!
Venus
Venus
If your toenail is thick than you problably have injured it or have fungus if it is a little yellow.
the thick liquid would plug your radiator and ruin your water pump. and destroy your engine.
There is a thick radiator hose coming from the right hand side of the radiator at the top, follow that hose from the radiator towards the engine. I will connect to the thermostat housing, it has two bolts.
Ben Doe's bananna ;)