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| Where is the Radiator switch? http://www.club323f.com/forum/viewtopic.php?f=18&t=39166 |
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| Author: | hamsterjie [ Tue Apr 20, 2010 1:16 pm ] |
| Post subject: | Where is the Radiator switch? |
Hi everyone i recently got my astina(loving it) but i fear my readiator switch needs to be replaced...only problem is i cant find the bugger. Can someone please tell me where its located on the car. Thanks |
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| Author: | HughieW [ Tue Apr 20, 2010 1:18 pm ] |
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Radiator switch? Do you mean the thermostat? |
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| Author: | Lantis_BA [ Tue Apr 20, 2010 1:23 pm ] |
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Do you mean this one: http://www.fordprobestore.co.uk/store/p ... ts_id=2513 , the coolant temperature sensor? |
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| Author: | hamsterjie [ Tue Apr 20, 2010 1:33 pm ] |
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well its the switch that lets the radiator fan know that it time to turn on now coz the engine is hot. Im new to cars and not sure what its called so please forgive my ignorance. At the moment my fans arn't coming on and i have to turn on the aircon to bring the temp down. |
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| Author: | HughieW [ Tue Apr 20, 2010 1:36 pm ] |
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What is the reading on the temperature guage? The fans should only come on if the engine is too hot - they shouldn't come on under normal conditions. |
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| Author: | lewp91 [ Tue Apr 20, 2010 1:43 pm ] |
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they shouldnt come on unless its over half wayish.. hae you had any overheating issues? |
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| Author: | hamsterjie [ Tue Apr 20, 2010 2:06 pm ] |
| Post subject: | |
Well the gauge goes up to 3/4 and they still dont come on. The previous owner told me that i must always watch the gauge in heavy traffic as the car will overheat if i dont cool it down by turning on the aircon |
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| Author: | Lantis_BA [ Tue Apr 20, 2010 2:16 pm ] |
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If the radiator fan doesn't work at any time ( go to garage to give it a look ) then you need to replace the coolant sensor. I think that one has gone. Only, if the fan still works after testing. If the fan doesn't respont, you need to check the relais and fuses for the fan. Check it step by step 
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| Author: | hamsterjie [ Tue Apr 20, 2010 2:27 pm ] |
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ok so then i take it radiator switch = coolant sensor. that should be cheap to replace i just need to know where on the car it is, i checked by the radiator but cant see anything. |
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| Author: | lewp91 [ Tue Apr 20, 2010 2:35 pm ] |
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also called the thermostat... my rover vhpd likes running a bit warm... so ive got a switch ive installed on the dash that bypasses the switch and knocks the heat down in traffic:P just an extra precaution i guess... |
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| Author: | Lantis_BA [ Tue Apr 20, 2010 2:44 pm ] |
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the thermostat is different. You can check both, I don't know where that coolant switch goes, but do know where the thermostat goes |
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| Author: | planetman [ Tue Apr 20, 2010 7:26 pm ] |
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If I were you I would clean the earth on the front of the rocker cover. That has been known to make the temp gauge go haywire. It might not be actually overheating at all. |
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| Author: | andym323 [ Wed Apr 21, 2010 9:01 pm ] |
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Coolant temp switch is located under the coolant hose by the distributor 
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| Author: | Lethagized [ Wed Apr 21, 2010 10:02 pm ] |
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andym323 wrote: Coolant temp switch is located under the coolant hose by the distributor
On newer cars they integrated it in with the temperature sender unit. Not to be mistaken with the radiator fan switch. Radiator fan switch = turns the fans on Temperature sender unit = makes the gauge work On older cars they were separate, on newer cars they were one unit. Older ones have 2 wires, newer ones have 3 wires Newer type with 3 wires 
Older type with seperate gauge unit. The fan switch will be located under the coolant hose as andy said 
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| Author: | hamsterjie [ Thu Apr 22, 2010 7:01 am ] |
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Thanks a million guys especially Lethagized for adding pics. Lets hope i get it sorted. |
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| Author: | andym323 [ Thu Apr 22, 2010 8:11 pm ] |
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Interesting, my post ford engine has all the pre ford sensors plugged in
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| Author: | hamsterjie [ Sun May 02, 2010 9:46 am ] |
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ok i found the switch and replace it with exactly the same one and my fans still dont come on. When removing switch and breaching the connection directly the fans do come on. So the problem does lie with the switch but now im thinking that the one that was on there was not the correct one and now i went and bought the exact same one. So my question is, what is the right switch to place there? the markings on my current one says 21T, and on the other sides of it, 33250 and FAE.  [/img]
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| Author: | Rob [ Sun May 02, 2010 4:55 pm ] |
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planetman is on the ball, and may well be refering to the problem I had with my temperature gauge. Have a read here http://www.club323f.com/club323f/forum/ ... highlight= might save you lots of trouble becuase there might not be a problem at all. Rob |
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| Author: | hamsterjie [ Mon May 03, 2010 7:55 am ] |
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had a read on the thread, my gauge is working right. trust me the engine is bloody hot. My fans are NOT coming on at all:( |
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| Author: | HughieW [ Mon May 03, 2010 9:18 am ] |
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It might be worth replacing the thermostat? 
Or possibly a worse issue - water pump? |
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| Author: | planetman [ Mon May 03, 2010 9:30 am ] |
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hamsterjie wrote: had a read on the thread, my gauge is working right. trust me the engine is bloody hot. My fans are NOT coming on at all:(
The engine does get very hot when it is running normally. It takes 5 minutes to clean the earth - worth a try I would have thought
Are both the top hose and the bottom hose getting hot? If they are then its probably not the thermostat. You need to remember that it is very rare for the fans to come on anyway when the engine is operating normally. |
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| Author: | HughieW [ Mon May 03, 2010 9:36 am ] |
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I was half way through typing "check the temperature of the top hose" but for some reason, I erased it 
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| Author: | hamsterjie [ Tue May 04, 2010 4:45 am ] |
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Ok Will give that a try and let you guys know, Once again thanks for all the help, its very much appreciated. |
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| Author: | hamsterjie [ Mon Dec 06, 2010 11:41 am ] |
| Post subject: | Re: Where is the Radiator switch? |
Ok i thought maybe its because i bought an aftermarket switch that that might be the reason it didnt work. I thus went and bought a switch from the mazda agents and it still doesnt work. On another forum a user mentioned this "The ECU doesn't use the same temp sender as the dash. On the back of the head to the right of the dash sensor is another sensor with a triangular plug." Any ideas? |
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| Author: | Lethagized [ Mon Dec 06, 2010 5:23 pm ] |
| Post subject: | Re: Where is the Radiator switch? |
The triangular plug is the one i posted in my first pic. It's a 3 wire sensor. It controls the radiator fans AND the gauge. This triangular sensor is only fitted to later models. The eariler cars had a 2 wire sensor located in the same place, then an additional sensor directly under the distributor operating the gauge. 1 thing definitely worth checking is the main electrical connectors for the fans. It is located at the front of the car next to the headlight by the airbox |
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| Author: | da2el [ Tue Dec 14, 2010 3:59 pm ] |
| Post subject: | Re: Where is the Radiator switch? |
what will you do with that plug? |
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