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-1

Just a comment on running straight coolant vs straight water, like Lex said, water has the best cooling capacity, while the antifreeze does not. I've read that some race teams will run a mix of 8:2 or 9:1 water to antifreeze. The corrosion inhibition properties are not needed for a race engine that is rebuilt each time, and the higher ratio of water ...


4

The Engine Control Module has multiple outputs to control at least 3 different relays that control the two fans on the radiator/condenser area. Each fan has 4 wires, and a HI and LO speed. The exact control strategy I could not discover, but the ECU uses a variety of input signals and internal variables to determine how much "fan" should be turned on for ...


4

As long as you have replaced the radiator cap, then there should not be excessive pressure in the cooling system. The system is designed to hold 16PSI. If it does exceed this pressure, it will release pressure into the overflow tank. When the engine is cold, the thermostat is closed, not allowing coolant to flow through the upper radiator hose. Once the ...


2

I found the problem. Apparently it was a long piece of paper carried into fan assembly by a mouse. After running for a while paper must be choking the fan and thus stopping the air flow. Thanks everybody.


2

I am glad you got a good outcome, but would like to answer because I have a fair amount of experience with difficult cooling system issues, and the most recent one occurred while I was over 1,000 miles from home. Had I been close to my home it would have not been very inconveniencing. On top of that, it was the hottest time of the year and I had traveled 1,...


1

For cars of this vintage, there were two different coolant overflow designs in place. One design used a simple system, with an overflow bottle. There was a single hose that ran from the top of the radiator to a catch bottle. For this system the radiator cap has a fancy double seal system. One seal holds pressure to 13psi. Above that anything else goes ...


1

Perhaps there is some air in the system that is caused by a leak. Or something. I would take the radiator cap off, run at idle and watch the level there. Add coolant at the proper mix so that the top of the core is always covered. After a while the air should be removed. But if there is a leak, you must fix this. Watch for bubbles. When the bubbles stop,...



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