My son has a 91 honda civic. He hit a possum and cracked the bottom of the radiator. We replaced the radiator, the water pump went out. We replaced the water pump, and the themostat at the same time. Now the problem is that it still overheats. When it is sitting idle and the temperature is in normal operating range, the water is contsantly boiling out. We have bled the system as directed but no luck. When you step on the gas peddle the water will shoot out of the radiator with the cap off. The top hose is hot, the bottom is cool but does not feel like there is any pressure. If taken for a test drive the temp is fine for a while but then it climbs up as you accelerate, let off the gas and the temp comes down. The 2 fans are working. Any suggestions. I will be doing a compression test tomorrow just in case to check the head gasket. There is also white smoke coming out of the tailpipe.
Any help PLEASE.