- Joined
- February 9, 1999
- Messages
- 12,050
- Reaction score
- 131
- City, State
- Vail, Arizona
- Year, Model & Trim Level
- 1992 XLT 4x4
The Idea of not covering the entire radiator is so the fan, when running, doesn't block air as your moving. Many Fans add flaps on the fan shroud so when your heading down the freeway the air can get through the radiator and out without having to be forced through a spinning fan which can slow down/block the air when at freeway speeds.
I also like putting the temp sensor in the lower radiator hose (or near it in the fins if its that kind of sensor). That way the Fan is controlling the temp of the water coming out of the radiator (keeping it around 160-170 max) and the thermostat is keeping the engine warm.
I have tried putting the sensor in the heater hose/intake and found that the Fan and the thermostat were actually fighting each other when they tried to keep the vehicle cool. The Fan would end up running when on the freeway since the coolant coming out of the engine was at 200 or so. If you set the Fan to come on later so its not running when on the freeway you end up with a hotter running motor..
~Mark
I also like putting the temp sensor in the lower radiator hose (or near it in the fins if its that kind of sensor). That way the Fan is controlling the temp of the water coming out of the radiator (keeping it around 160-170 max) and the thermostat is keeping the engine warm.
I have tried putting the sensor in the heater hose/intake and found that the Fan and the thermostat were actually fighting each other when they tried to keep the vehicle cool. The Fan would end up running when on the freeway since the coolant coming out of the engine was at 200 or so. If you set the Fan to come on later so its not running when on the freeway you end up with a hotter running motor..
~Mark