The Chevy heater hose removal tool is a plastic piece that clamps around the hose. The tool slides into the fitting to release the hose.
removal of heater hose from engine to fire wall
Heater core? Inlet or outlet hose fitting at heater core?
You need the Quick Connect Connector Removal Tool, PN J43181. You can get it from your dealer or from an auto parts store like Napa, hope this helps
Generally, the upper heater hose leads to the water pump.
One goes from the heater core to the water pump, the other goes from the heater core to the intake manifold.
The outlet from the 350 engine to feed the heater core would be the one closest to the thermostat.
On a 1989 Chevy Celebrity the heater hose leaves the water pump via a hose barb then runs along the top of the passenger side frame rail and then into the heater core. The heater core is in the firewall below the blower fan on the passenger side of the car. The return hose leaves the heater core and runs along the firewall then to the water outlet below the thermostat.
That hose goes to your heater core, follow the hose to passenger side of the firewall.
Just un hook the hose's from heater core and put a piece of pipe in them or something and hook them together.
The return hose for the heater core generally leads back the the water pump. The inlet for the heater core comes from the engine.
one large hose from bottom of radiator to side of water pump. other large hose from thermostat housing to top of radiator. one heater hose from water pump to heater core, I think this one has a Y in it if there is a rear heater other heater hose from heater core to somewhere on top the engine. If there is a rear heater, its return hose goes to a fitting on the radiator.
Heater box drain It is just below the heater hose conections, If the heater core leaks it drains the coolant outside to keep the carpet dry.