Auxiliary fan cooling radiator is working all the times what cause it to work and how to fix it?

RADIATOR
REMOVAL 1) Disconnect negative cable from battery. 2) Discharge the A/C system. 3) Remove the front fascia.
WARNING: DO NOT REMOVE THE CYLINDER BLOCK PLUG OR THE RADIATOR DRAINCOCK WITH THE SYSTEM HOT AND UNDER PRESSURE BECAUSE SERIOUS BURNS FROM COOLANT CAN OCCUR. 4) Drain the cooling system. 5) Disconnect the radiator fan electrical connectors. 6) Disconnect coolant reserve/recovery hose. 7) Remove A/C lines. 8) Remove the auxiliary transmission cooler hoses. 9) Remove the pushpins and the upper radiator seal.


10) Remove the pushpins and the LH and RH radiator seal (Fig. 20).

11) Remove the A/C condenser side brackets to radiator attaching screws (Fig. 22). Separate the condenser from the radiator by lifting upward to disengage from lower mounts (Fig. 22). Allow the condenser to rest in front of radiator. 12) Remove the upper and lower radiator hoses.

13) Radiator can now be lifted free from engine compartment. Care should be taken not to damage radiator cooling fins or water tubes during removal. (Fig. 21) 14) Remove the auxiliary transmission from the radiator module. 15) Remove the cooling fan assembly from the radiator module. INSTALLATION
1) Install A/C condenser, (if removed). 2) Install radiator fan assemble, if removed. 3) Install auxiliary transmission cooler, if removed. 4) Slide radiator down into position. Seat the radiator with the rubber isolators into the mounting holes provided, with a 10 lbs. force. 5) Install mounting screws. 6) Connect the cooling fan electrical connector. 7) Install the radiator upper and lower hoses 8) In the LH and RH radiator seals. 9) Install the upper radiator seal. 10) Install the auxiliary transmission cooler hoses. 11) Connect the coolant reserve/recovery hose. 12) Install the front fascia. 13) Fill the cooling system. 14) Connect negative cable to battery

follow this steps and fix it. God bless you

1. Radiator Removal
   • 1 Open the radiator drain plug, located somewhere near the lowest point of the radiator, and let the coolant flow into a catch basin to drain it. Loosen the lower radiator hose to drain the coolant if your radiator does not have a drain plug.
     
   • 2 Detach the hoses from the radiator. Loosen the nose clamps and pull the hoses off of their attachment necks. Remove the auxiliary belts by sliding them off of their pulleys to gain more work room.
     
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   • 3 Remove the engine cooling fan and the radiator shroud. This step is vehicle-specific, and no single process will cover all types of engines. In most cases, you have to use a wide box wrench to release the mounting bolt that holds the fan to the engine. Set your cooling fan down upright to protect its clutch. Loosen the mounting hardware that holds the shroud. You might have to pull the fan and the shroud out together if clearance does not permit you to pull them out separately.
     
   • 4 Remove any mounting screws, bolts, clips or other remaining attachment points. Put these pieces of hardware into a container so that you do not lose them.
     
   • 5 Lift the radiator clear of the engine. This can result in a mess of coolant as the radiator shifts around, so have newspaper and a catch basin underneath the radiator.
     
   Radiator Replacement
   • 6 Slide the replacement radiator into place. Handle it gently so you do not damage the delicate cooling fins or hose necks.
     
   • 7 Replace the mounting hardware. Torque them so you do not break the new radiator.
     
   • 8 Reinstall the cooling fan and the shroud by simply reversing the fan and shroud removal process.
     
   • 9 Reattach the cooling hoses to their mounting necks. Snug the hose clamps down, being careful not to over tighten. Consider replacing your cooling hoses at this time, as they become brittle and prone to failure with age. Replace them all if you replace one.
     
   • 10 Install and tension the auxiliary belts if you removed them to get more room to work. Slide them back over their pulleys and adjust tension by turning the tension adjustment nuts and bolts.
     
   Cooling Addition
   • 11 Mix the replacement coolant and distilled water in the right proportions for your vehicle and your climate.
     
   • 12 Pour the coolant into the proper fill area. Depending on your vehicle, you may pour the coolant directly into your replacement radiator, into your overflow reservoir or somewhere else.
     
   • 13 Run the engine to allow the coolant to circulate and add more as necessary.
     
   • 14 Bleed the air from the system. There will be a bleed valve somewhere in the system, although its location will vary from vehicle to vehicle. Open the valve with a wrench and watch for bubbles. You know your radiator replacement is done when no more air bubbles bleed from the system and your coolant is fully up to temperature.
     

You have a couple of different problems here. You need to address the leak issue first. If you took it to a shop, go back and tell them to fix their work. Your radiator fan is another issue. Is this fan the big one you normally see on engines or are you talking about the auxiliary cooling fan that is mounted in its own assembly right behind the radiator? The auxiliary fan is controlled by a temperature sensor that your car's computer operates. For a better explanation, see the following link:

https://www.2carpros.com/articles/how-an-electric-cooling-fan-works

More than likely, the shop that did your work did something wrong and they are required to fix their screw up. At a minimum, they should warranty their work for at least 90 days.

fix coolant leak where hose or tube goes from overflow jug to the radiator cap and replace radiator or overflow jug pressure cap see what happens.if problem still exist your blend air door stuck or air door vacuum or electrical actuator not working not receiving vacuum could have broken vacuum hose or faulty mode switch, could be many things.could have plugged heater core check both heater core coolant hoses both hoses should be hot.if heater core inlet hose hot and out let hose cold heater core could be clogged need flushing out.

Check that the fan is working properly, whether it is electric or a belt driven fan. A car will overheat if the fan doesn't function as originally designed.

REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.CHECK MECHANICAL COOLING FAN.SHOULD HAVE RESISTANCE WHEN TURN WITH HAND.IF FREEWHEELS FAN CLUTCH NEED TO BE REPLACED.CHECK TO MAKE SURE AUXILIARY ELECTRIC COOLING FAN RUNNING HOT WIRE COOLING FAN IF FAN RUNS.YOU HAVE FAULTY THERMO SWITCH LOCATED AT THE BOTTOM OF RADIATOR ON THE LEFT HAND SIDE ON 4 CYLINDER ENGINE FOR V6 ENGINE THERMO SWITCH LOCATED ON THE LOWER RADIATOR HOSE ON THE RIGHT HAND SIDE OF THE ENGINE COMPARTMENT. CHECK FOR BLOWN COOLANT FAN FUSE OR FAULTY RELAY.IF THE AUXILIARY ELECTRIC FAN DONT RUN WHEN HOT WIRED THE ELECTRIC FAN FAULTY.

The accy fan you are refurring to is actually the a/c consensor fan.The only time that fan operates is with the cycling of the a/c system.Verify by turning a/c on ,fan should come on & off with a/c cycles..

Check your fuse and relay to the radiator fan, There going to be high amp fuse so most likely will be in the fuse box by the battery. If the fuse and relay is good, check the wire harness connection at the fans. The other thing to is to run the engine and turn on your A/C, the A/C should over ride the switch and turn on the fans. If the fans do turn on, inspect the radiator fluid, make sure it's at it's level and if it's never been serviced. It may be time, Orange antifreeze has a life of 150,000 miles or 5 years and the green antifreeze has a life of 30,000 miles and 1 year. The thermostat may also gone bad but i don't think at this case since your car only heats up while your stopped. If everything is working (fan) just replace the antifreeze 50/50 mix (Antifreeze/water), Water has great heat transfer but boils so antifreeze is added, and 100% antifreeze does not have great heat transfer and will gel when heated so the two have to be mixed 50/50 and if your not sure how to mix the two. You can buy them 50/50 mix and the capacity to your car total fill is 7.3 liter 4 cylinder/ 8.6 liter 6 cylinder. 

Check the fuse to the radiator fan and the relay's. Also check the wire harness and connections to the electric fan. Most of the time it's going to be a bad relay or corroded wire harness which is cheaper then the fan unit it self. Recap: check the fuses and relay and also check the wire harness at the fan to make sure there is 12 Volts to the power wire to the fans. Easy way to do this runt he engine and turn the A/C on hi and check radiator fan wire harness for 12 volts. If there is no power then work your way back to the relay, change the relay if the fuse is good. Good luck and keep me posted, be glad to help

I have had a similar problem.Check all of your Radiator and Heater hoses for leaks. The cooling system doesn't need to lose much coolant to create overheating problems. If you find no leaks -check that your bottom radiator hose isn't sucking flat and restricting coolant flow.