Question about 2004 Hyundai Santa Fe
I take it this only happens when the vehicle is stopped & idling? If not, check radiator & hoses for blockage (since you've already replaced the thermostat & top hose) - repair/replace as needed. Next, check the coolant temperature sensor's operation (there are two sensors - one for the temp gauge on the instrument panel, the other is used by the ECM (PCM). If that one is malfunctioning (i.e., telling the computer that the engine coolant temperature is less than it actually is, The ECM (PCM) it won't turn on the cooling fans.
Since you didn't specify which engine you have (i.e., 2.4, 2.6 or 3.5), Photo locations of all three are included here.
Hope this helps.
Posted on Sep 07, 2009
Look for coolant bleed screws, sounds like air trapped in the system...Check your owners manual for directions on filling, and be sure the have the heater temp control on full hot, when refilling coolant....
Posted on Sep 07, 2009
Thanks for your sharing....it's helpful us to know the location of the sensor and the function of it
Posted on Jul 04, 2011
You may have to change the termostat again. 1in 5 are defective. Also even if the water pump is not leaking it may not be pumping due to a loose impeler. OPen rad cap when cool start engine you should be able to see fluid circulating. No move ment ,change water pump.
Posted on Sep 08, 2009
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Posted on Jan 02, 2017
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