I have a 2001 mustang v6 the temp gauge shows just a little left of vertical which to me looks good. I put an OBDII scanner on it and it is showing running at 221-228 idling in the garage. I have a 195 degree thermostat in it. My wife has had it get hot 2 recently and it has never done that before. Coolant level fine running 50/50 heavy duty long life coolant.
Normal operating temp
- Thread starter dml1964
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wmburns
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A couple of things. The 2001+ V6 uses a CHT instead of an ECT. One of the MAIN reasons why Ford made this change is because the V6 is bad about trapping air inside the coolant jacket. This makes the ECT read low as well as blocking the flow of coolant.
Soooooooo the temperature as reported by the PCM is from the Cylinder head temperature sensor. Not from the coolant temperature sensor.
First thing. Double check there's no air inside the coolant jacket. If not, then straight up temperature is OK.
V6 coolant refilling procedure
www.allfordmustangs.com
Next thing. The 2001 V6 cooling fan is protected by a circuit breaker. This means that IF the cooling fan is drawing too much power it's possible for the CB to trip and thus disable the cooling fan. The CB will automatically reset after it cools down. This offers an explanation how the problem can come and go. Suggest spinning the fan by hand. How does it feel? IF there's binding or bearing roar consider replacing the fan.
Soooooooo the temperature as reported by the PCM is from the Cylinder head temperature sensor. Not from the coolant temperature sensor.
First thing. Double check there's no air inside the coolant jacket. If not, then straight up temperature is OK.
V6 coolant refilling procedure
1998 mustang irregular rpm's showing hot
98 mustang was overheating, jerking, running rough and just not sounding healthty. New wires, plugs,thermostat, Air Filter you name it has been replaced along with a radiator, hoses and battery within the past two months. Once the tune up was completed it jerked a little then ran fine for 10...
www.allfordmustangs.com
Next thing. The 2001 V6 cooling fan is protected by a circuit breaker. This means that IF the cooling fan is drawing too much power it's possible for the CB to trip and thus disable the cooling fan. The CB will automatically reset after it cools down. This offers an explanation how the problem can come and go. Suggest spinning the fan by hand. How does it feel? IF there's binding or bearing roar consider replacing the fan.
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