got this building up in my overflow tank. It is sticking to the sides at water level and on the underside of the cap....... is is a big problem where I should not drive the car?? How about a flush?? I am a little worried...... I am guessing it came from the new engine? Or a reaction to old vs new antifreeze??.
Engine is no good now, you'll have to get another one. You've cross contaminated the whole thing and it must be condemned
Yep, unfortunately, Cokey is right. Your 3.5 has caught 2.7's disease, its terminal.
Nothing to be overly concerned with Doug, most likely that is from the engine sitting with the cooling system open, and some debris or soap got in from power washing. A flush is in order and keep an eye on it, but not an immediate issue.
Last edited by Daytrepper; 05-01-2009 at 03:20 PM.
Laundry and dish detergent is an excellent solvent for cleaning oil and fuels from cooling systems. We used to use Dawn when I worked at the truck shop. Injector cups would go bad and leak diesel fuel into the coolant, and pretty much the same mess would occur as oil...Dawn, Calgon, worked like a charm.
Doug stopped by today and we flushed his radiator and got rid of the garp. The conclusion is that the 2.7 was leaking some oil into the coolant...but we will keep an eye on it just to be sure.