Ok, I spent yesterday thinking about the problem and checking things over under the hood. I noted that there were no signs of leaks obvious, no sign of oil/coolant contact, and no puddles or wet areas under the car. I checked the level of coolant in the rad, slightly low and the resevoir was full, I suspected a bad rad cap, pressure checked it, its ok, presure checked the system, found a pin hole leak on the upper rad hose under the clamp on the thermostat housing. I changed the hose, refilled the coolant, and bled out the air. No leaks, and things seem to be operating normally. I spoke to my local mechaninc who was going to have a look today, and he agrees that I might have solved this and now I will drive it for a few days and see if anything changes and if it stays normal then I got it. Thanks for all the other posts here which gave me the ideas of what and how to check.
Tuesday, March 25th, 2008 AT 10:43 AM