First, remove the throttle body air inlet duct and drain the cooling system in order to allow replacing the throttle body heater hose. Then, unscrew the throttle body inlet hose clamp and hose off the coolant pipe and after that unscrew the drip of throttle body clamp and hose and remove throttle body inlet hose. For Installation, it starts with the installation of the new throttle body inlet hose, then you attach the hose and clamp to the throttle body followed by application of securing the hose and clamp to the said coolant pipe. Finally, refuel the cooling system and put back the throttle body air inlet duct.