Question about 1976 Cadillac Eldorado
Fill the rad to the VERY top.Do not leave any air space.With the engine running look into the rad.Do you see a constant flow of bubbles coming to the top out of the filler neck?
That is a head gasket or crack somewhere allowing combustion gas to enter the cooling system.
No bubbles? Then is the thermostat defective or installed backwards?Do you have a fan clutch that is not clutching?Remove the thermostat completely and see if the vehicle still overheats as a quick check.
Posted on Apr 24, 2017
Take a look at the hoses on the radiator sometimes they will collapse and stop the flow of water under high rpms
Posted on Aug 16, 2008
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Posted on Jan 02, 2017
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Sounds like the front of the radiator or A/C condenser is clogged up...take a water hose and try to clean any debre from the front, so air can pass freely...
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