Question about 2005 Ford Mustang
My '88 Celebrity V6 overheats in traffic. The electric fan turns on and off in response to the AC system but does not turn on when the engine gets too hot. Do I look for and check and engine heat sensor that presumably should turn on the fan at high heat conditions. Is there a way to check to see it the water pump is working correctly without taking the front of the engine apart? The car is great in other respects. Any thoughts?
If the vehicle is not over heating at a higher speed....the water pump is most likely OK.
It sounds like the fans needed in traffic or when stopped while the engine is running are not coming on when needed.
Look at the front of the car,under the hood on the passenger side near the rad....you should see a large relay...it is the cooling fan relay.
It is a common for this relay to fail.
I would change this and the engine coolant temp sensor which controls this relay.
This should correct the over heating problem by kicking the fans on when needed.
Posted on Sep 04, 2009
Testimonial: "I still have to implement the solution but it seems to be quite on target"
All you have is one or two fans? Have you checked or replaced the thermostat? The thermostat opens when the engine gets to operating temp, and allows the water in the radiator to flow through engine and the water pump pumps the water out of the engine back through the radiator to cool before it goes back through again. I check the lower radiator hose to see if it get hot like the top hose or you could take the lower hose of the pump to see if it is pumping. I would start with a radiator flush and do this a couple times, prestone makes a flush and Im sure someone else does. do that then change your thermostat, make sure when you put the new one in it goes in spring side down..
Posted on Sep 04, 2009
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Posted on Jan 02, 2017
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