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2006 Ford Fiesta 1.25 Radiator Fan not Working..

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Old Sep 10, 2012 | 03:02 PM
  #1  
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Default 2006 Ford Fiesta 1.25 Radiator Fan not Working..

2006 Ford Fiesta 1.25 Radiator Fan not Working..
Hi I got a 2006 Fiesta 1.25 the radiator cooling fan is not kicking in when the car is hot and when in traffic will start to over heat and water will bubble out of expansion bottle.

so far I have changed and checked:
1: New Expansion bottle cap as thought it might be releasing pressure
2: New Engine coolant temperature sensor. The one which fitted on side of
cylinder head above gearbox on what looks like a metal housing.
3: checked the thermostat which is definitely working opens and stays open.
4: Radiator is getting hot and heater blower is blowing constant hot air so
water is circulating.

All parts fitted are genuine from Ford.

The car has A/C so when you switch A/C on the Radiator fan does come on as it performs both A/C functions and water cooling functions. However in this case it doesn't come on when the car is getting hot.!!!!

The Fan does come on if you disconnect the temperature switch!!!

Guys your help and advice would be much appreciated..
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Old Sep 10, 2012 | 05:39 PM
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Im sure its controled by the engine ecu.I could be wrong though.
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Old Sep 10, 2012 | 07:41 PM
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If the fan is ecu controlled there will be 3 circuits that have to work!

a) the circuit from the engine temp sensor ECU
b) the circuit from the ECU to the RELAY
c) the circuit from the RELAY to the FAN

you have stated that the fan comes on with the A/C therefore circuits B & C must work or you would get no fan at all!

Therefore I would be looking around circuit A the temp sensor to ECU leg. Electrical temp sensors are nearly always resistance so you need to make sure the wiring is not corroded as this can affect readings as well as checking for shorts or open circuits!

good luck!

pm me any questions!
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Old Oct 6, 2019 | 02:31 PM
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From: Pune, India
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Originally Posted by romelo1
2006 Ford Fiesta 1.25 Radiator Fan not Working..
Hi I got a 2006 Fiesta 1.25 the radiator cooling fan is not kicking in when the car is hot and when in traffic will start to over heat and water will bubble out of expansion bottle.

so far I have changed and checked:
1: New Expansion bottle cap as thought it might be releasing pressure
2: New Engine coolant temperature sensor. The one which fitted on side of
cylinder head above gearbox on what looks like a metal housing.
3: checked the thermostat which is definitely working opens and stays open.
4: Radiator is getting hot and heater blower is blowing constant hot air so
water is circulating.

All parts fitted are genuine from Ford.

The car has A/C so when you switch A/C on the Radiator fan does come on as it performs both A/C functions and water cooling functions. However in this case it doesn't come on when the car is getting hot.!!!!

The Fan does come on if you disconnect the temperature switch!!!

Guys your help and advice would be much appreciated..

Hi,

I am also facing same issue with my ford fiesta ... exctly same what you had faced..
I want to know what you have done with this issue.. and how you got this done..
Please revert me as early as possible..
waiting for your precious reply..
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