On a 1982 there are two doors, one in the heater outlet and another behind the glove box. May be the same for 1988.
Could be, low on coolant, stuck open thermostat, plugged heater core, temp blend door malfunction,
Could be,a stuck open thermostat,low on coolant,plugged heater core,faulty temp blend door actuator,
You can find the 2004 Oldsmobile blend door behind the passenger side kick plate. Remove the kick plate to access the blending door.
The heater blend door is not run by vacuum. It is run by an electric actuator.
It does not. It is cable controlled thru a "blend door". If you are having no heat, it could be because of a clogged heater core, or the cable has came off the blend door, or the blend door control.
How do I locate the heater blend door actuator in a Ford f150 pickup
I do not have heat in the car and the blend door clicks. How do I access the blend door in a 2005 Ford Explorer?
First check the fuses then check your blower fan then check the blend door and blend door actuator and then the control panel
No.
Low on coolant, stuck open thermostat, plugged heater core, faulty temperature blend door,
Yes, it is possible the blend door is broken in the heat position.
The heater core is like a small radiator - the engine coolant flows through the heater core . The blend door mixes varying amounts of unheated air with the heated air to regulate the temperature