milky brown slime under the radiator cap

[Killr6]

what can cause this??

leaking inlet manifold gasket?
tranny fluid?
or is the head gasket blown?

if its the tranny fluid will a new radiator fix the problem?

cheers.

[pjdm1980]

It could just be condensation check the other fluids for contamination?

[Killr6]

oil is fine, no water in oil just sludge under the rad cap and the dipstick is also dirty as hell.

car doesn't overheat, no smoke, runs and idles fine, i Dont loose coolant.

[DavesCalais]

How many ks? the engines sweat alot when they get old which creates the sludge.. if you want to do something about it "power" back flush the entire system

[Darcon666]

Check your dip stick and oil cap... any milky brown there as well??

[Ghost]

I have same problem everything clean but the radiator

[Killr6]

oil cap and dipstick are fine nothing milky there clean oil by the looks of it.

just the milky brown shit on the rad cap and the overflow bottle stick is brown dirty to.

i think it may be oil, as you can see it floating in the green coolant, doesn't have a red tinge to it like tranny fluid has.

[Darcon666]

Then hopefully it's just the bottom tank of the radiator has split... but it still could be the inlet manifold gasket... The harder of the 2 is the inlet manifold gasket as the radiator is just remove and replace.

Good luck with it...

[Killr6]

hmm but if my tranny fluid was leaking would it cause the milky build up?

[scvs6]

Could even be the coolant pellets that you are supposed to put in the radiator everytime you change the coolant. I stopped using them because it makes the coolant look like it has rust in it.

[Killr6]

i dont use the pellets.

[VTS5]

If its look like a strawberry juice its your radiator tish it self internally.but if its look like a iced coffe your inlet gaskets needs to be renewed.

[Killr6]

yeah its a coffe looking colour, have contacted steve at MACE about a gasket set.