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<blockquote data-quote="rcchevy" data-source="post: 20187" data-attributes="member: 1883">Well, the problem has returned: With the engine off both radiator fans still run for about 2 minutes. One time it ran super high speed, noisily.The coolant level changes on its own.The engine coolant temp sensor reads a little below 3 o'clock (mid-level)Have done the following:1- Thoroughly bled for air in the cooling system several times, the last time for 1/2 hr. continuously. Made sure that the thermostat was open by reading themps of the in and out hoses we both hot.2-Replaced thermostat for the second time and ECT ( engine coolant temp sensor) once. These two items are of known good quality and OEM style.3-There are no coolant leaks.I assume the ECT controls these fans but obviously, there is something else controlling them. Does anybody know what it is?Help!Temperatures presently in Miami, Fl not hot and cooling down.</blockquote>

[QUOTE="rcchevy, post: 20187, member: 1883"] Well, the problem has returned: With the engine off both radiator fans still run for about 2 minutes. One time it ran super high speed, noisily. The coolant level changes on its own. The engine coolant temp sensor reads a little below 3 o'clock (mid-level) Have done the following: 1- Thoroughly bled for air in the cooling system several times, the last time for 1/2 hr. continuously. Made sure that the thermostat was open by reading themps of the in and out hoses we both hot. 2-Replaced thermostat for the second time and ECT ( engine coolant temp sensor) once. These two items are of known good quality and OEM style. 3-There are no coolant leaks. I assume the ECT controls these fans but obviously, there is something else controlling them. Does anybody know what it is? Help! Temperatures presently in Miami, Fl not hot and cooling down. [/QUOTE]

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