Hello All, I need help in determining why I all of a sudden have an anti-freeze over-flow issue. 68 Firebird with the original 400. The last two times I took the car out for a ride, when I got back home and parked the car, I noted ant-freeze was coming out of the over-flow tube at the top of the rad. I would say approximately 4-5 ounces spilled out after my last ride. The temp gauge appeared to be normal. It's an analog temp gauge, thus I couldn't tell exactly what it was reading, but the reading was the same as it always is on any given day, which I would say is around 160 - 180. I can tell you that I had replaced the water pump, rad cap, and thermostat about 5 years ago (180 thermostat). I have probably put on about 2000 miles in the last 5 years. I have not had an over-flow in the last 5 years, except for the two most recent over-flows in the last few days. I can also tell you that the car runs great and I don't notice anything unusual. Any insight as to what the issue may be would be greatly appreciated. Regards, Jay
