Jump to content


Photo

mondeo heater intermittent


  • Please log in to reply
11 replies to this topic

#1 benscab

benscab

    Member

  • New Member
  • PipPip
  • 13 posts
  • Ford Model: MONDEO MK3 2002 HATCHBACK ZETEC PETROL

Posted 25 February 2009 - 10:00 PM

my mondeos heater seems to just work as and when it wants. sometimes the temp guage needle goes up (then heater works) and sometimes needle goes nowhere (then heater doesnt work.
its a 2001 51 plate 2 litre petrol.

Have something to contribute?

Sign in or register to start a topic...

#2 gaz6076

gaz6076

    Feet Under The Table

  • New Member
  • PipPipPipPip
  • 448 posts
  • Ford Model: Mk5 Fiesta
  • Location: Scotland

Posted 25 February 2009 - 10:22 PM

Blocked heater matrix?

#3 benscab

benscab

    Member

  • New Member
  • PipPip
  • 13 posts
  • Ford Model: MONDEO MK3 2002 HATCHBACK ZETEC PETROL

Posted 25 February 2009 - 10:25 PM

is that easily fixed by a novice ??

#4 gaz6076

gaz6076

    Feet Under The Table

  • New Member
  • PipPipPipPip
  • 448 posts
  • Ford Model: Mk5 Fiesta
  • Location: Scotland

Posted 25 February 2009 - 10:57 PM

You will need to drain the cooling system. Best way of doing that is by removing the pipe at the bottom of the radiator.

Not sure exactly where or how easy is its to get to on the mondeos but at the bulkhead you should see to pipes leading into the car. Be roughly in the middle. You need to remove them as well.

The best way I've found to unblock it its to force water down where you removed one of the pipes and see if it comes out the other one. Don't put too high a pressure in there though or you could damage something. The sort of pressure you would get by sticking your thumb over the end of a garden hose.

I've used a pressure washer before but at a distance :lol: Wouldn't recommend you doing this though.

After removing any blockage connect all the pipes back up and fill the coolant back up. Leave the cap of and let the engine warm up to let it bleed out.

#5 benscab

benscab

    Member

  • New Member
  • PipPip
  • 13 posts
  • Ford Model: MONDEO MK3 2002 HATCHBACK ZETEC PETROL

Posted 27 February 2009 - 06:04 PM

STILL NO SOLUTION TO MY PROBLEM.......... DOES ANYONE ELSE HAVE ANY IDEAS ?????

#6 SierraYankee99

SierraYankee99

    Too much time on the boards

  • New Member
  • PipPipPipPip
  • 859 posts
  • Ford Model: Ford
  • Location:

Posted 27 February 2009 - 06:09 PM

Thermostat sticking?

#7 gaz6076

gaz6076

    Feet Under The Table

  • New Member
  • PipPipPipPip
  • 448 posts
  • Ford Model: Mk5 Fiesta
  • Location: Scotland

Posted 27 February 2009 - 06:15 PM

Thermostat sticking?


Could be...

benscab, did you try unblocking the matrix?

#8 benscab

benscab

    Member

  • New Member
  • PipPip
  • 13 posts
  • Ford Model: MONDEO MK3 2002 HATCHBACK ZETEC PETROL

Posted 27 February 2009 - 06:31 PM

waiting for a mate of mine coming over as im not confident enoug to do it myself,just trying to get as much info as possible for him before he gets here.

#9 SierraYankee99

SierraYankee99

    Too much time on the boards

  • New Member
  • PipPipPipPip
  • 859 posts
  • Ford Model: Ford
  • Location:

Posted 27 February 2009 - 06:34 PM

From my old mondeo days I remember there was an issue with Mk1s that when you turned left the heaters blew cold, turn right and they blew red hot. Cant for the life of me remember the cause of it though I do remember Ford didnt have a clue. Got a funny feeling it meant a new heater matrix though, wasnt as simple as being blocked.

#10 gaz6076

gaz6076

    Feet Under The Table

  • New Member
  • PipPipPipPip
  • 448 posts
  • Ford Model: Mk5 Fiesta
  • Location: Scotland

Posted 27 February 2009 - 07:01 PM

I would try a new thermostat first as there quite cheap. Not sure how easy they are to change on the mondeos though

#11 SierraYankee99

SierraYankee99

    Too much time on the boards

  • New Member
  • PipPipPipPip
  • 859 posts
  • Ford Model: Ford
  • Location:

Posted 27 February 2009 - 07:05 PM

I agree, not something I've done on a mondeo but the matrix is a pain in the !Removed! to do and not cheap.

#12 gaz6076

gaz6076

    Feet Under The Table

  • New Member
  • PipPipPipPip
  • 448 posts
  • Ford Model: Mk5 Fiesta
  • Location: Scotland

Posted 27 February 2009 - 07:15 PM

If your just going to try see if its blocked and then unblocking it, its not that difficult. Just a bit messy. Lol

Depends where the thermostat is located on whether is worth trying is first

Have something to contribute?

Sign in or register to start a topic...


Not what you're looking for?

Register now, we have a huge community of enthusiasts to answer any questions you might have



0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users