car is overheating. But no leaks on ground. Temp fluctuates hot/ cold when driving, then it gets near red line. Sometimes Reservoir gets over filled and bubbles air. I suspect air blockage in engine or head gasket leak. Sometimes reservoir fluid will not release back into radiator. Maybe back pressure? Air pockets?
I followed book instructions opening bleeder ports when engine off and cold, fill radiator with fluid until fluid comes out of both ports, fill radiaror, then fill reservoir to cold line. Started engine, open radiator cap to check antifreeze level if full after starting. As the engine gets warm, fluid starts pushing out of radiator. WTF. If I have to wait for thermostat to open to see circulation, then I'm losing all of my fluid on the ground.
yesterday, drove car 2 miles, at first OK, then it jumped to 260. I tried to turn on AC, then tried heater, I could hear the fan on, but could not feel AC or heat air coming through dash vents. Shut off engine, let cool to drive back home.
Parts already replaced. Radiator, Thermostat, water pump and now. 16 lb radiator cap w/vent release.
What am I doing wrong, what could it be and how to fix it? What is the right procedure to remove air pockets?
Cat 5. Need help!
have the same problem?
Monday, July 5th, 2010 AT 8:21 AM