Help
mate you have the same prob as me! im lost and cant think of what to try next
Heater Control Valve How to fit a new one (not dial-up friendly)
#22
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- Location:West Sussex
Posted 01 February 2008 - 07:26 PM
Have you tried the Heater Resistor under the dashboard?
http://cgi.ebay.co.uk/ford-mondeo-focus-ka...oQQcmdZViewItem
http://cgi.ebay.co.uk/ford-mondeo-focus-ka...oQQcmdZViewItem
Rick
The Haynes Fiesta Manual (3397) can answer a lot of your questions.
The Haynes Fiesta Manual (3397) can answer a lot of your questions.
#23
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Posted 01 February 2008 - 08:16 PM
QUOTE (JonnyH @ Jan 31 2008, 02:42 PM) <{POST_SNAPBACK}>
Hi,
I have the same seemingly unfixable problem as JJJ. I replaced the heater valve myself last year (thanks to the great guide here) with a new one from Ford. It didn't make any difference - still blew hot. Just had it in at the garage (not ford) to make sure I had fitted it right and the mechanic fitted another new one. Again no difference....still only hot.
It is pulsing between 0 and 12v as it should on the terminal connector to the HCV. I can't understand why the valve isn't working - is it a digitally coded pulse or something?
Does anyone please have any ideas?
I have the same seemingly unfixable problem as JJJ. I replaced the heater valve myself last year (thanks to the great guide here) with a new one from Ford. It didn't make any difference - still blew hot. Just had it in at the garage (not ford) to make sure I had fitted it right and the mechanic fitted another new one. Again no difference....still only hot.
It is pulsing between 0 and 12v as it should on the terminal connector to the HCV. I can't understand why the valve isn't working - is it a digitally coded pulse or something?
Does anyone please have any ideas?
If you're getting a pulse at the HCV electrical connector, then barring the extremely slim chance that you've fitted two new faulty HCVs in a row, I think it might be the electrical connector that's not making proper contact with the terminals on the HCV.
With the heater temperature set at half way, how often was it switching between battery voltage and ground? It should switch once every few seconds.
(the beauty of mathematics)
#24
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- Location:Bournemouth
Posted 15 February 2008 - 08:49 AM
they where some bad HCV about a few months ago, Ford have a new version out now.
#25
Posted 12 March 2008 - 11:30 AM
QUOTE (Mountain Lion @ Feb 1 2008, 08:16 PM) <{POST_SNAPBACK}>
If you're getting a pulse at the HCV electrical connector, then barring the extremely slim chance that you've fitted two new faulty HCVs in a row, I think it might be the electrical connector that's not making proper contact with the terminals on the HCV.
With the heater temperature set at half way, how often was it switching between battery voltage and ground? It should switch once every few seconds.
With the heater temperature set at half way, how often was it switching between battery voltage and ground? It should switch once every few seconds.
Thanks for the advice. I will check the contacts now and clean them up. The pulse was every few seconds and it varied in relation to the position of heater dial. Fingers crossed...
