Parts might be $225 to $350, while the labor would add another $75 to $175, depending on how simple it is to install. It’s difficult to put an exact estimate on the cost of a new AC condenser fan. First, you must consider the make and model of your vehicle, as some luxury cars have much higher-priced parts. Thermoelectric coolers operate according to the Peltier effect. The effect creates a temperature difference by transferring heat between two electrical junctions. A voltage is applied across joined conductors to create an electric current. When the current flows through the junctions of the two conductors, heat is removed at one junction and Once the temp gets so hot, the ECU commands the radiator fan to come on. If your Sierra has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. You’ll need to locate and test the engine temp sensor. Depending on the model year and engine, the location varies. The engine cooling fan is designed to move air through the radiator when the vehicle is at slower speeds or stopped. This air flow removes heat from the coolant created by the engine using the radiator as a conductor. An engine cooling fan is temperature controlled to only run when needed. The radiator fans are categorized into two parts, which are described below. Electrical Radiator Fans: Electric radiator fans provide a reliable and efficient cooling solution for automobiles, using a small electric motor and a wiring system that comprises connectors, fuse, relay(s), sensors, wires, and a control module. 3. Fuses - look fine. 2. Fan motors- work fine (connected them directly to power source) 3. Replaced the control module (attached to the radiator) 4. Checked the temperature switch with ohm meter - seems to be fine, resistance changes with temperature changes. Jumped the plug that plugs in the temperature switch to rule out the switch, no fans 8662 posts · Joined 2010. #2 · Feb 10, 2014. That water temp seams way out of line. Our thermostats should be fully opened by 195 F/90 C, and cooling fan should be coming on by 210 F as far as I know. I'd consider changing thermostat if you're over 80K, and definitely suspect that cooling fan cause something isn't right. Learn what makes a viscous fan clutch operate. Detailed animations show internal components. Several symptoms may point to a bad or failing thermo coolant fan switch. 1. Engine overheating. Engines generate an enormous amount of heat and as a result are subjected to very large temperature swings if this switch does not operate effectively. When this happens, the result can be extremely damaging, resulting in thousands of dollars in The temperature-activated, electronically-controlled, hydrostatic fan drive system can offer finer control and reduce the fan speed during times of low cooling demand. Therefore, the fan drive system can use less power. The power saved can be used to increase fuel efficiency and the overall operating efficiency of the machine. oIhKK2.