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FORD FIESTA MK4 1998 1.3 8V


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#1 ben5010

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Posted 07 December 2008 - 01:17 PM

Hi, I've got a Ford Fiesta MK4 1.3 8v 1998 and the heaters are blowing cold constantly even tho the engine is running at the right temp.
the pipes going into the bulkhead are both hot and there are no air locks in the system is there any common problems like this with these fiesta's?

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#2 ikarma70

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Posted 07 December 2008 - 02:15 PM

try disconnecting the heater valve unit from the power and reconnect it,if the solenoid is working,you should here it clicking as it opens/closes.

if you don't hear that click then the solenoid is knackered.

#3 ben5010

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Posted 07 December 2008 - 08:34 PM

is that the valve on the bulkhead?

#4 ikarma70

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Posted 08 December 2008 - 07:18 AM

is that the valve on the bulkhead?


yes it is and has 4 hoses connected to it.
disconnect the power from the heater unit with the electrics off then turn the power on,heater controls on and reconnect it and as i said before if its ok you should hear the solenoid clicking into the open position.

thats how i tested mine when it was blowing cold.

#5 stepheno

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Posted 08 December 2008 - 03:10 PM

id bet my house on that its the heater valve, your local scrappies will have a load of them as they are so common! i had to fit 2 to my old mk4


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