Arnodafe72
Member
- Posts
- 92
- Location
- Sweden
Hi guys ! Been getting help of here for some years reading through stuff Respect ! - here's hoping you can help me again! Have a Freelander 1.8L petrol 2005 Facelift k-series that has naturually the thermostat front external setup modification to stop tthe top lock problem that the Landers had. whenitgets really hot out i notice stuttering etc in my engine. Borrowed a simple error code reader and reported misfire in cylinder 4 along with check engine light. Cleaned throttle body and rack, all sensors i could find there, added fuel system cleaning agent to clear the system, changed spark plugs and did an oil change along with both oil and air filter renewal. However, having got my handson another better laptop setup after stuttering continued on startup after being left for a day, i got the error code P0480 immediately, even though no check engine warning light or warning had ever been recieved. This is ofcourse for the cooling fans not running which naturally results in overheating when it is hot outside even though the engine cabin is huge and airated well, and sympoms of this code is stuttering, misfire etc - everything i had. So i began to address the situation.....
However, with the modification of the thermostat the normal location of the two coolant sensors (one to dash meter and one to ECM to tell it to turn on the cooling fan), only has one - where the other sensor underneath should be is just solid metal. The sensor that is there should be the for the fan managemant (aswell as being black), however when removed the meter reading in the dash drops to zero - so it is not the fan one. The reading on the meter is normal - just below half, but the reading on the ECM Coolant TEMP. and INPUT Coolant TEMP. is 112 degrees 'C' - scary.....! The fans do not come on, even when AC is requested. I cannot see the other sensor anywhere nor the large relay associated with it - i only have two fuses - one under the bonnet and one inside the car, which are both ok.
I have jumped both fan motors from the battery and they both work. There is power going to the silver module that is on the cooling fan frame and one of the smaller two cables leading to it also has power on ignition setting electric before ignition. Both cables have 12v. So something isn't telling the fan to go on, otherwise the elusive 'moved' coolant temp fan senor or relay is broken - if so, where ARE they? Or is the module on the fan frame broken ? Question is: does the module contain the sensor or relay which is why no one can find it ? Also, would the thermostat have something to do with it if it was not operating properly? Cannot understand why i never got a warning light - i have no recollection of the fans ever being on......please help, highest regards, a fellow Landy lover, Arnodafe72
However, with the modification of the thermostat the normal location of the two coolant sensors (one to dash meter and one to ECM to tell it to turn on the cooling fan), only has one - where the other sensor underneath should be is just solid metal. The sensor that is there should be the for the fan managemant (aswell as being black), however when removed the meter reading in the dash drops to zero - so it is not the fan one. The reading on the meter is normal - just below half, but the reading on the ECM Coolant TEMP. and INPUT Coolant TEMP. is 112 degrees 'C' - scary.....! The fans do not come on, even when AC is requested. I cannot see the other sensor anywhere nor the large relay associated with it - i only have two fuses - one under the bonnet and one inside the car, which are both ok.
I have jumped both fan motors from the battery and they both work. There is power going to the silver module that is on the cooling fan frame and one of the smaller two cables leading to it also has power on ignition setting electric before ignition. Both cables have 12v. So something isn't telling the fan to go on, otherwise the elusive 'moved' coolant temp fan senor or relay is broken - if so, where ARE they? Or is the module on the fan frame broken ? Question is: does the module contain the sensor or relay which is why no one can find it ? Also, would the thermostat have something to do with it if it was not operating properly? Cannot understand why i never got a warning light - i have no recollection of the fans ever being on......please help, highest regards, a fellow Landy lover, Arnodafe72