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Ford fiesta heating!!

  • 18-01-2011 5:47pm
    #1
    lab20
    Registered Users, Registered Users 2 Posts: 25 ✭


    I have a Ford Fiesta 2001 1.8Td CAR-VAN. i hhave being getting trouble with heating system now for couple of months. Today i changed thermostat AND the heating control valve. all the pipes were hot except 1 which was the pipe on the left after the heater control valve. there still aint no great heat in van unless i do 70mph or high rev's.
    Can anyone help with this situation please??


Comments

  • #2
    Henry Ford III
    Moderators, Business & Finance Moderators Posts: 17,858 Mod ✭✭✭✭Henry Ford III


    Is the heater rad blocked?


  • #3
    zilog_jones
    Registered Users, Registered Users 2 Posts: 6,638 ✭✭✭zilog_jones


    Was gonna say heater control valve but you already did that - you did replace it with a new one, right? Had to replace it on mine a few years ago (no heat at all), but now it occasionally acts up - sometimes it gets hotter at high revs (as you experience), like when overtaking, or sometimes it just feels like going on full heat randomly - sounds to me like a control problem, but not sure if it's the valve or the hand controls (is it just a pot?) or something inbetween...


  • #4
    lab20
    Registered Users, Registered Users 2 Posts: 25 ✭lab20


    Henry Ford III wrote: »
    Is the heater rad blocked?

    Well i was talking to a mechanic from my local ford dealer! he said there is a oil cooler connected to one of the feed pipes that could be blocked!! but will look in to that anyway!!
    thanks


  • #5
    Plug
    Registered Users, Registered Users 2 Posts: 9,248 ✭✭✭Plug


    lab20 wrote: »
    Well i was talking to a mechanic from my local ford dealer! he said there is a oil cooler connected to one of the feed pipes that could be blocked!! but will look in to that anyway!!
    thanks
    There are oil coolers in the newer version of that 1.8 diesel, Im fairly sure its not in the model you have. Did you get a mechanic to test if the heater control valve is getting the right voltage. How it works is, a module earths it every few seconds and that in turn opens the valve a bit everytime depending on what tempeture you have it on. I've seen the heater control valves fail a good few times but I have also seen the module an odd time fail as well. Might want to get someone to have a look. Easy to check it if you have a circuit tester. I'll tell you.

    *Edit* Did you put in a second hand heater control valve?


  • #6
    lab20
    Registered Users, Registered Users 2 Posts: 25 ✭lab20


    Plug wrote: »
    There are oil coolers in the newer version of that 1.8 diesel, Im fairly sure its not in the model you have. Did you get a mechanic to test if the heater control valve is getting the right voltage. How it works is, a module earths it every few seconds and that in turn opens the valve a bit everytime depending on what tempeture you have it on. I've seen the heater control valves fail a good few times but I have also seen the module an odd time fail as well. Might want to get someone to have a look. Easy to check it if you have a circuit tester. I'll tell you.

    *Edit* Did you put in a second hand heater control valve?

    Yeah i put a new heater control valve in! the mechanic told me tat it wil earth every half second when the heating is on half way! when i put the tester to the module it showed up 12 volt but no real pulse was to be seen on the tester! i mite get the ford mechanic to have look at it at weekend! thanks for your help!


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