What should the thermostat be for a corvette cooling fan?
What should the thermostat be for a corvette cooling fan?
The oxygen sensor works more efficiently at high exhaust temperatures promoting less fuel usage and emissions. For this reason, we recommend using a minimum 180 degree thermostat and turning on the cooling fans at the 200-205 degree range.
Where is the relay on a radiator fan?
The fan relay is often located in the engine bay’s fuse box, but the best way is to check your repair manual to find where it is located. Testing a 4 pin relay is often very straightforward. Remove the relay and give 12 volts to pin 30 and 85. Ground pin 86 and check if there is voltage coming out from pin 87.
Where do I find the fan temp switch?
The easiest place to first check would be in the relay socket. We know the circuitry and fans are ok, since they work with the a/c and DLC. It is just a matter of whether the PCM is commanding them on by temperature. It could end up being a PCM issue.
Is there a way to turn on the cooling fan?
There are various cooling fan control switches available to turn the cooling fans on earlier than the factory ECM or PCM controlled settings. We recommend using a cooling fan switch that matches the thermostat opening temperature. For instance, our 244455 fan switch turns the fan on in the 200 degree range.
The oxygen sensor works more efficiently at high exhaust temperatures promoting less fuel usage and emissions. For this reason, we recommend using a minimum 180 degree thermostat and turning on the cooling fans at the 200-205 degree range.
There are various cooling fan control switches available to turn the cooling fans on earlier than the factory ECM or PCM controlled settings. We recommend using a cooling fan switch that matches the thermostat opening temperature. For instance, our 244455 fan switch turns the fan on in the 200 degree range.
The easiest place to first check would be in the relay socket. We know the circuitry and fans are ok, since they work with the a/c and DLC. It is just a matter of whether the PCM is commanding them on by temperature. It could end up being a PCM issue.
The fan relay is often located in the engine bay’s fuse box, but the best way is to check your repair manual to find where it is located. Testing a 4 pin relay is often very straightforward. Remove the relay and give 12 volts to pin 30 and 85. Ground pin 86 and check if there is voltage coming out from pin 87.
