No you can not, It is under to much pressure when engine is running.
NEED to REPLACE IT.
Cool the heater hose and then gently take it off
NO nothing hooks to it.
Dealer part
The heater inlet hose on a 1999 Jeep Wrangler 4.0L is located in the left, rear of the engine compartment. It connects directly to the heater core which circulates heat throughout the cabin.
heater core
Check for a heater flow valve in the heater hose they can rust shut easily it is a valve in the heater hose that opens when you turn on the heat and shuts when its not in use, if not then probably the core is plugged a radiator flush might help but you may need to have it cleaned and repaired.
YES. You need a special tool to remove the quick disconnect hose.
under the dash board you will see two hose let the car warm up and feel the hose if both are hot then its not ur heater core...but if 1 is hot and the 2nd is not then you need a heater core :-]
The 1999 Chevrolet Camaro heater hoses will have a swivel nut on each end of the hose. Turn the swivel nuts to the left and the heater hoses will come off. Reverse the process to install the new heater hoses.
There are two heater core hose that goes to the firewall the inlet and outlet. through that hose, you will also have the rear heater core hose attached to a T joint in both the inlet and outlet hose. You splice the hose of the front heater core inlet and connect that to the rear heater core inlet hose. Same goes to the Outlet hose with the T joint using a conncetor which you can buy at your auto parts store, 3/4 inch size. Basically you are bypassing the front heater core that is connected to the firewall. You wont have any defroster and heater for the front, but the rear vents and control will have heat.
At the top of the engine's left head cover, to your right when you open the hood. you will see air hose connected to it. Remove the hose and then pull the PCV.
if it has one it is in heater hose at firewall if it has one it is in heater hose at firewall