The temperature blend door and actuator is located behind the dash assembly. The dash assembly needs to be removed to gain access to the blend door assembly.
"Where is the heater controll valve on a 2001 Chevy S-10 controll Valve? "
The heater temp blend valve is located behind the dash assembly. The dash assembly must be removed to gain access.
Idle Air Control Valve
The heater temp blend door and actuator are located behind the dash assembly on top of the HVAC box. Unfortunately the dash assembly needs to be removed to gain access to it.
GOOGLE!
If you are asking about the temp blend door actuator, it is behind the dash assembly, attached to the HVAC box. Removal of dash is required.
The air control valve on a 1991 4.3 S10 is on the engine. Kindly refer to your usual manual to see the exact point, where it is located. The Idle Air Control is attached to the base of the throttle body.
A replacement heater core would cost aprox $35.
Passenger side valve cover
$400 to $600 depending if it has ac or not.
The fuel shut off valve on a 2000 Chevy S10 pickup is located just outside the gas tank. It is designed to shut fuel off to the fuel pump in the event of an accident to prevent a fire and to kill the engine.
Where do you find the idle air control valve on a 94 s10