Creamy light brown/tan gunk in coolant tank

[Cloudsurfer]

Originally Posted by gcorteen

UPDATE: Found a guy a few miles away that has done work on boxsters. Car ran fine on the trip there at speeds up to 75. Car temp was good and no funny smells when I got there. First thing noticed was one radiator hose was warm and one was not. Also, fan was not blowing warm air from radiator. He thinks I should just replace thermostat to start. Does this sound right to everyone? Thanks again for all the help.

New problem. Got the car home and smoke (not a lot) was coming out of the vent by passenger side door. Any thoughts?

Find a shop who knows what they are doing, and DO NOT drive the car until you get this solved (unless, of course, you'd like to buy a new motor).

[BYprodriver]

Hmmm, how can I convert my limited funds to depleted...

[Cloudsurfer]

Originally Posted by BYprodriver

Hmmm, how can I convert my limited funds to depleted...

I'll second that...

[BYprodriver]

Ran across the factory procedure for cleaning oil from coolant system in service manual Group 1 part 2 way in back of manual printed in 2002. Interesting that intermix is common enough problem to require update in manual with specialized equipment but not until 2002. I would be sure & have this procedure done after intermix repair.

[JFP in PA]

Good luck trying to find the listed cleaning agent to add to the cooling system; fortunately, Prestone make a good one that works fine for this...........

[gcorteen]

Are you saying that even after the system is flushed I should add something to the coolant to help with the little bit of oil that will inevitably still be in there? What is this product? Oil cooler was leaking and has been changed and car is being flushed repeatedly right now. Thanks.

[JFP in PA]

No, the cleaning additive is used with straight water, allowed to circulate and then drained, usually multiple times, then the system is flushed with clear water a couple times, then refilled with the proper coolant mix. Some shops, like mine, have fabricated connectors that allow us to run clean hot water thru the entire system for long periods without the engine running for this purpose. Typically, this is a "time and materials" type project, once the source of the intermix in found and fixed.......