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Old 02-16-2021, 06:04 PM
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fbd73 fbd73 is offline
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Join Date: Oct 2016
Location: Australia
Posts: 159
Default Cooling system holding pressure

Hi All,
I have a 1973 Firebird Formula 350. About 3 years ago I installed a 3 core aluminium radiator from Ledfoot Racing. We also installed twin electric fans and have had no overheating or cooling issues since.
Now to the problem. A couple of weeks ago, I took the car out for an afternoon cruise. No problems. 24 hours later I went into the garage and noticed a pool of coolant on the garage floor. On inspection it was coming from the water pump. I went to take off the radiator cap and coolant sprayed all over the inner and outer fenders. The cooling system still had pressure after 24 hours. I have never heard of that happening. I have since replaced the water pump but the system holding pressure has not been solved.

What are your thoughts as to why this could have occurred?
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