is nearly complete:
I have had the radiator serviced and unplugged, and flushed out the block, replaced the water pump, the thermostat, and put in a new electric radiator fan; I have changed both upper and lower hoses to the radiator, and added Prestone 50/50 with water. Now it drives extra cool on surface streets, but when I go up an incline on the freeway for one mile it over-heats and fills the resevoir with runoff coolant. Am I facing a problem with the block? Does block sealer additive help or harm the problem?...
I know the last resort is to have the heads redone. With coolant coming out into the resevoir it makes me think it isn't leaking. There is no steam in the exhaust, and the oil has no water in it. There is no sign of any leaking or steaming anywhere under the hood. I have screwed down all the clamps very well.
Ideas?
voice from the past