Yes, there is a tool for that. But, I just carefully cut mine off with a drimel tool. Just be careful not to tug or bend on it too much... don't want to break the metal nipple from the heater core!
The heater inlet hose is on the firewall. On the 2002 Silverado it is close to the bottom of the firewall on the passenger side.
That is called a quick disconnect fitting and it requires a SPECIAL tool to get it loose.
it's under the hood on the passenger side of the firewall right out in the open
the heater core is accessed from under the hood it is a nasty time consuming task. lift the hood and see the heater assembly against firewall. remove all that to get at the heater core
Take out engine side hose by quick release remove plate then slip out black box. Replace metal tubes that run from the heater core to the firewall. remember to replace thermostat if need be and execute a coolant flush.
There are two hoses for the 2006 Silverado heater core. Loosen the clamps where the hoses go into the firewall. Twist the hoses gently to break them loose. Slide the hoses off. Follow the hoses to the other end, and repeat the process.
if it has one it is in heater hose at firewall if it has one it is in heater hose at firewall
It take a special tool to release the hose connector. I went to O'Rielly and they show me the Dorman Quick Disconnect replacement part ($6.29) and the Disconnect tool set ($19.99). It took the 3/4" disconnect tool to release the broken hose connector on my GMC truck. Snap on the 3/4" disconnect tool onto the heater core tube, then slide the tool into hose connector to release the dog ears inside the connector. Then pull the connector off. It took me about 30 second to remove the disconnect once I had the connect tools.
It is behind the engine ,in the exhaustpipe, right in front of the firewall. It has one wire coming out of it and connects to a connector in a clip on the firewall, right next to the heater fan motor .
In the engine bay, remove the inlet and outlet hose from the firewall for the heater core, get a heater hose connector that matches the hose sizes (fair warning they are 2 different sizes but i cant remember) and just join the 2 hoses together with the connector and some clamps. you wont have heat or defrost by doing this though.
The heater blower for a 2002 Chevy Silverado is mounted under the dash. It is on the passenger side, in the heater housing.
Cut the hoses close to the firewall and loop them together using a flush valve or other splice connector that can handle heat.