Begin by removing the water supply hoses from your 1989 Chevy heater core. Remove the heater core retaining bolts. The heater core can be removed.
The heater hoses connect the block, radiator, heater core, and waterpump. To replace, drain the radiator and catch the anti-freeze for recycling. Remove the hoses and put on new hoses. It is kind of nasty but not very difficult.
In line on the heater hoses on the passenger side of the engine. Has a small vacuum line to it and both heater hoses go through it. The heater hoses are smaller than the radiator hoses and go through the firwall.
Follow the heater hoses from the engine, they will lead you the heater core.
the large hoses feed your heater core to warm your car
the heater hoses are on the left side of the engine and will be two next to each other on the fire wall
There are hoses in the engine compartment that go to the heater core. You can remove the intake and out going hoses from the heater core. You have to either block off these hoses or connect them together, depending on the make of the vehicle.
Could be a problem with the thermostat housing or it's gasket, could be a problem with intake manifold gaskets, could be a problem with heater hoses or the fittings that screw into the manifold.
Depends on the vehicle and somtimes engine size. B Clear.
Behind the dashboard, usually on the passenger side. Look in the engine compartment for the hoses that go from the engine through the firewall. Those are generally the heater hoses, which go to the heater core.
Follow the heater hoses from the engine. They will lead right to the heater core.
no heat can be caused by,blocked heater core insufficient coolant in engine blocked heater hoses from engine to heater core bad heater thermostat bad thermostat in engine bad heater control switch