Nope.
Drain the radiator. Disconnect the heater hoses. Remove the screws holding the heater core case and remove the whole assembly. Remove the core and install the new on in the case. Reverse the procedure to finish the installation.
remove fuel tank.
Remove the water from your 1998 Chevy Camaro cooling system. Remove the water supply hoses from the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
The heater blower for a 2002 Chevy Silverado is mounted under the dash. It is on the passenger side, in the heater housing.
Remove the wiring harness from the back of your 1998 Chevy Lumina heater motor. Remove the heater motor retaining bolts. Remove the fan from the front of the heater motor. Reverse the process to install the new heater.
Remove the water supply hoses from your 1985 Chevy heater core. Remove the heater core retaining bolts. The heater core will come out. Reverse the process to install your new heater core.
Remove the wiring harness from the back of your 1994 Chevy heater fan motor. Remove the heater fan motor retaining bolts. Remove the fan from the front of the heater motor. Reverse the process to install the new heater fan motor.
That is called a quick disconnect fitting and it requires a SPECIAL tool to get it loose.
buy a Chilton manual and it will tell you most of what you need to know.
Drain the water from your 1990 Chevy Corsica cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
injectors 6.6 Chevy silverado
Drain the water from your 1998 Chevy Astro cooling system. Remove the water supply hoses from the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.