Citroen xantia 1.9TD unpredictable Blower fan characteristic

vsstephen · Post by **vsstephen** » 28 Jul 2009, 05:15

Citroen xantia 1.9TD unpredictable Blower fan characteristic, looking for a Remedy, please help.

Problem: Temperature rises gradually if I drive more than 50 KM distance continuously.

Action Taken So far:
1. Change the coolant expansion tank cap to avoid any coolant leak while coolant very hot with great pressure.
Still the same problem Exists.
2. Flush radiator and change the coolant.
Still the same problem Exists.
3. Radiator Mechanic advice to check the blower fan irregularity.
Symptoms: After on the ignition, and on the air condition the blower didn’t turned on, but after few minutes, two blower starts to run. Off the car and redo again the same, blower didn’t start instantly. After some time both fan turns on. Run for a while and driver side fan only working other side not working. So the radiator specialist suggests its blower fan problem. Blower fan didn’t help to cool the engine. Causing temperature went high.

Problem, which am facing,
In My Place very difficult to find a continental car workshop, there is two. But this problem they suggest me to go air condition workshop, air condition workshop say not familiar with this model. So my head go other side and don’t know what to do. So I made search in the forums, Some good heart suggest this

Solution 1: http://w3ww.honestjohn.co.uk/forum/post ... =4&t=58656
Solution 2: Some say make the blower fan work continuously, when u start the car blower also starts, when u off the car the blower also off.

Which solution is the good for me? Or any other solutions. Am a poor monthly wage guy who cant afford to change car or heavy maintenance. Please help. Am using this car for my family transportation. Thanks in advance.
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Stempy · Post by **Stempy** » 28 Jul 2009, 08:14

Sounds like it might be a problem with the relays that control the fans. There are three of them under a cover between the two fans, it would be worth checking them out. Other than that the Bitron aircon control unit has been known to give problems, it can be found underneath the left hand headlamp unit.

Clogzz · Post by **Clogzz** » 28 Jul 2009, 13:28

Welcome to our troubles, Stephen.

Where are you to refer to the driver’s side fan ?
If you unplug the brown temperature sensor, both fans have to go to low speed first, then soon to high speed.
Turning on the air conditioning must start both fans at low speed.
If not, tap the fans, or look at the relays as per Stempy’s post. ^

vsstephen · Post by **vsstephen** » 14 Aug 2009, 07:54

d gr8 mechanic change my two blower fan motor and its fan. reason he claims, two motor not able to perform hi speed. $500 burn. i like this car, cant let go and cant keep also..seems my car sensor only can trigger the fan abot 90 degree. now he make the fan run for ever...my temperature alwasys shows below 80 degree. i dont know how long this fan can withstand this hi speed run for ever..no choice thread closed...

Post by **RichardW** » 14 Aug 2009, 08:17

If the temp is rising on a steady 50km drive, then it's not a fan problem - above about 40km/hr, the fans have no impact. If you are overheating on a steady run, then I would suspect either: Radiator blocked (either internal or external with road debris); water pump not working properly; water level low; thermostat failed partially closed; headgasket failed.