Creamy light brown/tan gunk in coolant tank

[gcorteen]

Thought I found a great deal on an 01 S until I looked in the coolant tank. Coolant level dropped to the bottom of the tank on my 4 hour drive home with car and the top of the pinkish coolant has a tan/light brown layer of creamy stuff on it. Any idea what the problem might be?

[extanker]

a number of things....oil cooler,casting "freeze plug". is it alot of stuff in the tank? hows the oil color/level ?

[gcorteen]

Oil color and level is right on.

[gcorteen]

There is a layer of the gunk about 1/4" thick on top of the coolant.

[Boxtaboy]

Here, take a look at this thread: http://986forum.com/forums/showthread.php?t=24696&highlight=Oil+coolant

Hopefully, it's just a bad heat exchanger/Oil cooler, and not a cracked head.

[JFP in PA]

You have an intermix problem; common causes are a failing oil cooler (common), a popped freeze plug (also common), blown head gasket (less common), or a cracked head (also less common).

You need to stop using the car immedeately. It needs to be checked by someone that knows what they are doing. If it has to be moved to get it to them, flatbed it, DO NOT DRIVE IT.

[gcorteen]

Thanks for the input everyone. Are any of these potential fixes something I may be able to check out myself (limited skills) or does anyone know of somebody in the Madison area (WI) I may be able to get it to for help? I have limited funds and don't think a dealer will work for me.

[Boxtaboy]

I would first try to return your car to whomever sold it to you for a refund! If that doesnt work, you could try to contact your local PCA chapter to see if they could recommend any local independent Porsche repair shops: http://vista.pca.org/cwi/

[gcorteen]

If there is oil in the coolant would it appear the usual color of oil? This stuff is very light in color - like a light pair of khaki pants.

[blue2000s]

Originally Posted by gcorteen

If there is oil in the coolant would it appear the usual color of oil? This stuff is very light in color - like a light pair of khaki pants.

It's oil, not much doubt.

[Boxtaboy]

The oil is mixed with a lot of coolant (the coolant tank you see is only the coolant overflow tank, so it shows only a small fraction of the overall coolant in the system), so the oil in the tank you see will not be all black like oil itself. Instead, it would look like what you're looking at now...a frothy tan colored milkshake-like mix. Hate to say it, but it's almost certainly an oil/coolant intermix, and you can't keep driving the car without addressing it because you will really damage the engine.

If you can't afford to fix the car at a dealer or independent shop right now, buy a Bentley Repair manual and you can perhaps try to replace the oil cooler/heat exchanger yourself to see if that was the cause of your intermix. Of course, you'll also have to flush and refill/burp your coolant system tank as well. If that doesn't do it, you'll really need to take it to shop that knows Porsches.

Repair manual:
http://www.amazon.com/gp/aw/d.html/ref=redir_mdp_mobile/185-9993856-2479431?redirect=true&tag=porschepetesboxs&a=0837613337