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13-07-2015, 10:10 PM | #1 | ||
Starter Motor
Join Date: Jul 2014
Posts: 6
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Hi, I've just bought an 05 Fiesta Zetec but on the trip back to Canberra we found that the one thing we didn't check - the heater - didn't work. Considering we've been below 0 regularly for the past month it was a surprisingly warm drive back in 2 shirts, a jumper, jacket, explorer socks and beanie.
So I've been doing a fair bit of research and checked the physical cables from the switch to the valve (I think it's the valve), checked for leaking coolant, checked fuses and found nothing. I know it isn't the blower resistor because the fan works at any speed too. So I need to go and buy a Haynes manual as I think it's been narrowed down to the heater control valve or the core being clogged. If the pipes I found were the right ones, they were the both warm, one more than the other so I think that rules out air in the system. I haven't been able to hear the blend door actuator do anything so that's an option too. So that's where I'm up to, but if anyone has any experience with this it would be great to hear as I'm pretty new to fixing stuff on more modern cars. Thanks |
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14-07-2015, 09:50 AM | #2 | ||
Chairman & Administrator
Join Date: Dec 2004
Location: 1975
Posts: 107,235
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If one pipe was warmer than the other then you've identified the inlet and outlet lines probably.
The temperature control actually operates a temperature control flap in the heat exchanger housing using a Bowden cable (a mechanical cable with an inner and outer sleeve). The air movement is also controlled in the same way. Cheers Russ
__________________
Observatio Facta Rotae
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14-07-2015, 08:02 PM | #3 | ||
Starter Motor
Join Date: Jul 2014
Posts: 6
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Thanks Russ, always fun learning new things even if it means a cold car until I figure it out. Cheers.
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