PLEASE HELP...weird crap in radiator fluid

[kermit80]

I noticed my reserve tank was empty, and i started filling it with water. I noticed this yellow crap in it. It looked like sawdust or something in there. I was curious if anyone else had this problem and if they figured out where the source was. I had this once before and i flushed it out and it seemed fine, but it was hard to get out. This crap actually got all on my valve cover somehow, it's weird. This was probably almost a year ago. Any ideas?

I heard that coolant from Honda...(one type they sell) doesn't create any gunk or crap in the system like normal coolant. They use a different base chemical or something. Thats what my friend said who is a master mechanic at Honda. I think i might switch to that this time.

[kandyflip445]

If it looks like yellow sawdust crap then it's probably this radiator leak stuff you can get at wal-mart. It's supposed to plug holes but to me it seems like it would plug other stuff too(thermostat). Just flush out your system with distilled water and then put in a 50/50 mix of distilled water and anti-freeze.