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30-03-2015, 03:42 PM
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IT Drone from Sector 7G
 
Join Date: Nov 2011
Location: Macedon Ranges, Victoria
Posts: 22,169
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My partner's Fiesta (2011 TW TDCi) has the thermo fan come on as soon as the car ignition is turned on, even if the car has been sitting overnight. Any clues where to start looking?
FWIW last time this happened I pulled the battery cable off, left it ten mins, and put it back on and it was all good until today. I'm guessing this is the car version of a reboot  .
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31-03-2015, 07:25 PM
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FF.Com.Au Hardcore
Join Date: Nov 2009
Location: Sydney
Posts: 1,128
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Mine, although mine is petrol the fan will come on straight away if the A/C is on. Cold or not.
Diesels run cooler though so you would think it would not be necessary straight away.
__________________
2016 Mazda 3 SP25 GT 2019 Hyundai i30 Active. |
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03-04-2015, 11:01 PM
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IT Drone from Sector 7G
Join Date: Nov 2011
Location: Macedon Ranges, Victoria
Posts: 22,169
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Ended up being the fan relay in the fuse-box under the bonnet.
It's a 70A SPST unit, the spring return for the actuator had come off and the contacts had welded themselves shut. I did a temporary fix by pulling the relay apart and filing/sanding the contacts and putting the spring back but ended up replacing the relay. About $21 from a Ford dealer. |
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Thermo fan - TDCi TW Fiesta
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