My 99 Saturn SL1 (145,000 miles) has been having problems with oil getting into the coolant for over a year now (no coolant in oil). Recently, I ran into overheating problems and replaced the water pump, thermostat, and radiator and still had problems. It turns out that some of the oil that was in the coolant has formed a gel-like sludge that was plugging up the area around the thermostat and wouldn't allow anything through the thermostat. Runs fine now without the thermostat in place. Now, I can't figure out how to get all this sludge out of the system. Most coolant cleaners are only designed for "typical" coolant contaminants (scale, rust, etc.), But are there any that will clean this sludge out? Seems like it would need to be some type of solvent but don't want to run anything that will create additional damage.
have the same problem?
Saturday, October 27th, 2007 AT 11:10 PM