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ford fiesta heater problem

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New User

Sep 19, 2015, 8:05 AM

Post #1 of 4 (803 views)
ford fiesta heater problem Sign In

hi I have a ford fiesta 2001 1.25 zetec when I have my heaters on they will blow hot for maybe 30 seconds or so then cold then hot then cold I heard that the heater control valve is a common fault so I have replaced it with a new one and still have the same problem any ideas thanks

kev2 profile image

Sep 19, 2015, 8:57 AM

Post #2 of 4 (795 views)
Re: ford fiesta heater problem Sign In

I would start easy simple-
Check engine cooling system- radiator full of coolant, correct thermostat, any work done that may have opened system- could be trapped air.
A little more involved
Is the engine reaching correct temp (ECT) ?
Fans are not on constantly?
Any codes, CEL on?
Is the mode/temp select electric or vacuum?

New User

Sep 19, 2015, 10:12 AM

Post #3 of 4 (789 views)
Re: ford fiesta heater problem Sign In

Hi thanks for the reply
Engine coolant is at max very rare it uses any
No work done apart from oil and filters changed about 8 month ago
I've had the car just over a year and temp guage has always sat at halfway
Fans are not constantly on
How do I check if temp select is electric or vacuum

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 19, 2015, 1:47 PM

Post #4 of 4 (781 views)
Re: ford fiesta heater problem Sign In

The temp blend door is electric.


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