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Cooling system : Technical Problems / Queries | Fiesta Forums

Cooling system

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Cooling system

Postby russ_si on Sat Dec 30, 2006 10:16 pm

I have a problem and not really sure why.

When the car isnt running the water in the header tank will be on the min line but when car is running the water
will rise to just above the max line?

The car isnt lossing any water at all, Heaters are warm but not hot dosent over heat but dont think its cooling as well as it should be?

Any ideas?
Was thinking it could be an air lock in the system?

Thanks russell.
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Re: Cooling system

Postby HawkeVIPER on Sat Dec 30, 2006 10:30 pm

russ_si :Was thinking it could be an air lock in the system?


That'd be my first thought too. Try giving your bottom pipe a squeeze with the top off the radiator.

Alternatively, you may just not have enough fluid in the system - as shown by it being lowish when cold. When it gets hot, it expands, therefore raising to the max line. Top up the expansion tank (when cold), start it up, squeeze the pipe as it's warming up, and see if the level drops in the header tank.
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Postby knuckles on Sat Dec 30, 2006 10:40 pm

Thats what its supposed to do. :lol:

Its proper name is a expansion tank. When the engine is cold fill to max level. When it is at operating temperature it will rise above and go back down when cooling down.
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Postby dave hay on Sat Dec 30, 2006 10:41 pm

an air lock would give you cold air

id try flushing matrix out.......

incidently mine does this too. i topped it up with some water and had it idling. water didnt really move.....but when you rev it that water failry splashes about

i think they just got verrrrrrrrry lazy pumps

sounds fine to me just a dirty matrix probably getting dirtier :)
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Postby Ollybee on Sat Dec 30, 2006 10:42 pm

Oh my God! :lol: :lol: :lol:
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Postby russ_si on Sat Dec 30, 2006 11:02 pm

Sorry i know its a bit of a stupid question :bonkers: i just wanted to be sure i havnt got a problem :)

Thanks for your help :D

Russell.
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Postby knuckles on Sat Dec 30, 2006 11:09 pm

You know when you have a problem :lol:

Steam will erupt from under the bonnet , water will be coming out of the expansion tank even when fully done up. Thats when its over heated. Temperature guage will be up in the red by then....

Happened to me when my fan switch decided to pack in. :rolleyes:
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Postby heeman10 on Sun Dec 31, 2006 12:16 am

knuckles :Thats what its supposed to do. :lol:

Its proper name is a expansion tank. When the engine is cold fill to max level. When it is at operating temperature it will rise above and go back down when cooling down.

Bravo! :D
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Postby HawkeVIPER on Sun Dec 31, 2006 12:27 am

knuckles :Steam will erupt from under the bonnet , water will be coming out of the expansion tank even when fully done up. Thats when its over heated. Temperature guage will be up in the red by then....


Mine does that...

In fact, the steam coming out from under the bonnet is my only method of judging running temps at the moment... temperature sender isn't connected, and my fan is broken :o
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Postby knuckles on Sun Dec 31, 2006 12:40 am

Thats maybe your car calling out to you to fix it :lol:

10mm spanner replaces temp sender 2 mins work tops
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Postby HawkeVIPER on Sun Dec 31, 2006 1:36 am

knuckles :Thats maybe your car calling out to you to fix it :lol:

10mm spanner replaces temp sender 2 mins work tops


I'm concentrating on the bigger issue of it needing a gearbox replacement right now :P

But yeah, it's something i really need to fix before FITP, I really don't want to get stuck in traffic without a temp gauge or a radiator fan.
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Postby frstben on Sun Dec 31, 2006 2:04 pm

Oh my god your car wont make it to FITP if you don't fix the fan and you wil need more than just a gear box :lol:
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Postby heeman10 on Sun Dec 31, 2006 2:49 pm

frstben :Oh my god your car wont make it to FITP if you don't fix the fan and you wil need more than just a gear box :lol:

Agreed, unfortunately.
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Postby HawkeVIPER on Sun Dec 31, 2006 3:06 pm

heeman10 :
frstben :Oh my god your car wont make it to FITP if you don't fix the fan and you wil need more than just a gear box :lol:

Agreed, unfortunately.


I'll get out and push the bloody thing if I have to. :lol: But yes; found a radiator fan now, only another hundred things on my list to fix before May :rolleyes:
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