Quote:
Originally Posted by floresramy
2001 Automatic
overheating slowly...fans running real weak
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What temps are you seeing?
The fans run in a series/parallel configuration. When coolant temp reaches 226°f, the low speed (series wired) fans are commanded on. They will also turn on if a/c is on at speeds below 35mph. The fans will turn off when temp cools to 219°.
If low speed fan operation isn't sufficient and coolant temp continues to rise, the fans will switch to high speed (parallel wired) mode at 235°f.
Even at 235°, it is not overheating (Though it is unusual for the coolant temp to exceed that).
