- Hello Mr scotty kilmer. I have a 2000 toyota corolla 1. 3 2e. With Carburettor.( 695 000KM) the fan relay is constantly clicking like mad, and the fans turn on soon as I turn on the ignition. Can I simply replace the relay and call it a day?. I also want gut the thermostat cause the heater is already blowing hot when the bottom hose isn't even warm, I suspect a sticking thermostat. How badly will a gutted thermostat affect my vehicle (I live in Durban South Africa on the coast) (our climate isn't really very cold all that often.)
Hello,
Removing the thermostat in a warm climate will have little effect on the car, It's mainly there to
help the engine reach its optimal temperature level quickly,
The fact the fan is clicking in and out however is something you need to check out,
This might require further attention.
Hope this Helps
All the Best.
@dvkala
Thanx alot 4 the advice.
Happy to Help
All the Best.
Change the relay to see what happens, It does not hurt anything. in the worst case, it won't solve the issue. About the thermostat, it is a good idea to change it, but if you do not have access to a new one, you can remove it.
@yaser
Yeah I'll try.. When I unplug the relay the fan goes off.. I don't wanna leave it off cause then there won't be anything to trigger the fan on.i will be gutting the thermostat this weekend however
Assuming this car has a simple switch fan control, the sensor in the gooseneck or the front of the head may simply be bad and intermittently turning on an off with vibration.
I would replace this fan control temperature sensor with a new one and maybe the relay for good measure. The sensor being changed is paramount because the relay clicking like mad means the relay is receiving those impulses to turn on from somewhere and most likely the sensor. Also check for a bad ground on the relay and/or fan.
If the car has air conditioning, the circuit may have a control wire also to the AirCon system.
Start with the sensor
A schematic would be helpful and if you get a photo of one, please post it so I can have a look. I will be able to give you a very accurate answer after seeing it.
@autoelectrical
Hey. Thanx for the advice.. I think I'll replace the temperature switch also for peace of mind. And my car is very simple cause I don't have A/C either. So there's only 1 cooling fan. I'm going to replace the radiator and gut the thermostat too. Just for extra peace of mind, cause I don't wanna overheat the engine.
If you are in a warm climate you can also put in a 160 or 180 thermostat. That is in F not C. Many of them are marked with both temps.
Yes if you are going to replace the fan, then just change the other parts and be done with the nightmare. God bless and good luck.