Jump to content


If this site has saved you money please feel free to donate a little of the saving


Great value Unlimited Broadband from an award winning provider


Photo

Thermostat, High Temperature, Radiator Fan Keeps Running


  • Please log in to reply
7 replies to this topic

#1 crooner

crooner

    Member

  • Members
  • PipPip
  • 50 posts
  • Gender:Male
  • Location:glasgow

Posted 12 June 2018 - 09:10 AM

Hi , my cars temperature warning light came on today , so i pulled in right away because the last time this happened it overheated and i had to get the head gasket replaced  , is the thermostat easy to replace

 

Also, after switching off the engine the radiator fan is still running , anyone know whats going on

 

citroen c3 14 LX 2004


  • 0

#2 paul.h

paul.h

    Moderator

  • Validating
  • PipPipPip
  • 6,673 posts
  • Gender:Male

Posted 12 June 2018 - 01:30 PM

If not already done, check the coolant level is ok. It could be one of the temperature sensors is faulty rather than the thermostat. High temperature (real or just given by one of the temp sensors) will also put the engine fan on and this can continue for a few minutes after the engine is switched off. If you replace the temperature sensors (there are 2) then get Citroen ones since cheap ones might not work properly. Some topics to read

http://www.citroen-o...ems/#entry83642

http://www.citroen-o...2005-14-petrol/

http://www.citroen-o...-by-new-sensor/

 

Thermostat replacement is not difficult but it comes as part of the housing so all of it is replaced. Getting all the air out is not too easy though but it helps if you make a filling funnel to raise the expansion tank level filling height - have a look at this for a diy one http://www.citroen-o...0-t-and-4222-t/



#3 crooner

crooner

    Member

  • Members
  • PipPip
  • 50 posts
  • Gender:Male
  • Location:glasgow

Posted 12 June 2018 - 07:41 PM

thanks but just to let you know i took filler cap off , took off the 2 bleed screws , but only about 1 litre came out , so i wasn't sure if that was all the water that was in the system ,  i changed the thermostate anyway & filled it up ran it topped it up a few times ,iv'e put about 4litres back in ,

it seems to be running alright i just have to keep my eye on water level ,

 

any problems i will look through the information you have been good enough to post ,and may have to look at making one of your diy expansion tank fillers


  • 0

#4 paul.h

paul.h

    Moderator

  • Validating
  • PipPipPip
  • 6,673 posts
  • Gender:Male

Posted 12 June 2018 - 09:50 PM

According to the Haynes manual there should be about 7 litres of coolant. If you got 1 litre out and then 4 litres in, it could be the head gasket is leaking. Check the oil level, the oil filler cap inside for mayonnaise, steam from the exhaust, check for any leaks.



#5 crooner

crooner

    Member

  • Members
  • PipPip
  • 50 posts
  • Gender:Male
  • Location:glasgow

Posted 13 June 2018 - 03:16 PM

According to the Haynes manual there should be about 7 litres of coolant. If you got 1 litre out and then 4 litres in, it could be the head gasket is leaking. Check the oil level, the oil filler cap inside for mayonnaise, steam from the exhaust, check for any leaks.

 

oil level / filler cap /steam from exhaust all seem to be okay , yesterday i discovered a heavy leak which seemed to be coming from one of the two hoses just below the small bleed bolt , it wasn't coming from the bleed bolt , so i wiped it clean & ran the engine, to my surprise the leak stopped , 

at one time i took the header cap off & water was overflowing from the tank , took the car to two local garages expecting them to know about the air lock problem & if all the coolant comes out at once how much the would expect to put in ,but never got a confident answer 

anyway car is now running okay will keep an eye on water level , havn't put any coolant in yet just water will it be okay to run with just water for a week or so till i can be confident the problem is sorted


  • 0

#6 paul.h

paul.h

    Moderator

  • Validating
  • PipPipPip
  • 6,673 posts
  • Gender:Male

Posted 13 June 2018 - 09:18 PM

If the engine was hot when you took the tank cap off then the coolant could boil and cause the water to overflow.

 

There will still be some anti freeze left in from when you changed the thermostat, probably not enough to prevent freezing in winter but most people would do what you have done and just filled up with water for now until any leaks are sorted.



#7 crooner

crooner

    Member

  • Members
  • PipPip
  • 50 posts
  • Gender:Male
  • Location:glasgow

Posted 19 June 2018 - 09:35 AM

car still running no leaks not overheating , can you tell me how much antifreeze concentrate i should put in , if there is still coolant in the system after draining from bottom radiator hose & filling with just water twice , surely the remainder must be diluted  , should i put in about 3 ltr pure concentrate to let it mix  . thanks in advance


  • 0

#8 paul.h

paul.h

    Moderator

  • Validating
  • PipPipPip
  • 6,673 posts
  • Gender:Male

Posted 19 June 2018 - 10:03 AM

I would do what you suggest, drain out 3 litres and then add 3 litres of 100% anti freeze. If it is not the same anti freeze used when the head gasket was changed or not a Citroen recommended anti freeze, then you might want to flush out as much of the old stuff as possible before putting in the new, just in cast the old/new are not compatible.






Ford Galaxy Owner Club