On a 2003 Bonneville, the hose to the water pump that is the heater inlet hose is the top hose coming from the radiator. This is also the hose that holds the thermostat.
Begin by training the water from your 1997 Pontiac Bonneville cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
Upper and lower radiator, inlet and outlet heater core, bypass,Upper and lower radiator, inlet and outlet heater core, bypass,
The hose that leads to the water pump area is the return.
the inlet heater hose that connects to the top of the water pump connects to which outlet on the heater core? the far outboard or the inside? this is in a 2002 ford f250, 7.3.
The outlet from the engine that feeds hot coolant into the heater core is usually (but not always) located close to the thermostat. The return hose from the heater core usually returns into the water pump.
You can bypass your 1988 Buick Skylark heater core by removing the heater core water supply hoses. There will be to water hoses. Connect the water hoses to each other.
replace the water heater inlet pipe on the intake manifold on a 3800
The return hose for the heater core generally leads back the the water pump. The inlet for the heater core comes from the engine.
Both of the heater hoses come from the firewall. One runs from the firewall to the water pump, this is the outlet hose. The other hose runs from the firewall to the top of the engine, this is the inlet hose.
You could start the engine , turn your heater to hot and the fan speed to max , and then feel the heater hoses ( without catching your hands / clothing in any moving parts ) As the engine warms up , the inlet hose to your heater core will be hotter than the outlet hose with the heat going into the passenger area
Remove the water supply hoses from your 1993 Chevy Corvette heater core. Some water will drain out of the hoses and the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
The heater core, in a Saturn and 1200, is held in place by four bolts and two water hoses. Remove the bolts and the water hoses. The heater core will come out. Reverse the process to install the new heater core.