Toyota 87240-0C010
Control Valve

Service and repairs of the Heater Control Valve begin by draining engine coolant from the radiator but fully draining the coolant is not required. Use pliers to disconnect the water hoses by dislodging the hose clip claws from the hose before pulling out the hoses. After that disconnect the water valve control cable. To reinstall the water hose you must guide it until it reaches the second ridge on the heater radiator pipe before reaching the body of the water valve. The water valve needs to be unbolted and then the water valve should be detached. Check the proper water valve operation by turning the ignition switch to "ON" position and running both temperature control switches to "MAX." After installation proceed with the reverse of these steps. COOL" and "MAX. WARM" to ensure proper function. To adjust the water valve function you need to disconnect the control cable then turn the ignition switch to ON before setting the temperature switches to MAX COOL. Proceed by placing the water valve lever at the "COOL" position before reattaching the control cable followed by clamping it and applying slight pressure to the mentioned cable section.

The first step in Heater Control Valve service requires draining engine coolant from the radiator but all coolant removal is not required. The first step to service the Heater Control Valve includes disconnecting the water valve control cable from the water valve but control cable adjustment must happen during subsequent installation. You should disconnect the water hoses by placing pliers over the hose clips' claws while sliding them along the hoses prior to removing them. Installation requires inserting the hose onto the heater radiator pipe until you reach the second pipe ridge and then continuing the insertion onto the water valve pipe until it reaches the water valve position before securing the hose clip properly. Detach the final components including the bolt as well as the water valve because that will mark the conclusion of installation.

Disconnect the water valve control cable from the water valve, ensuring to adjust the control cable during installation.