Can the hose leading from the water pump to the heater be disconnect and plugged up in order to bypass it on a 1994 G20 series?

Disconnect heater core inlet and outlet hoses - couple them together

Heater CORE, not coil. The core is plugged and needs back flushing or replacement. ...

You will see 2 heater hoses connected to the firewall. These are the inlet & outlet hoses going to the heater core. Disconnect them and then connect them together with a coupler. This will bypass the heater core. ...

Disconnect the inlet and outlet hoses to the heater and couple them together Or, if the hoses are the same size, remove one completely, and disconnect the other from the heater core, then connect it to the other engine outlet (or inlet, as the case may be). ...

Disconnect the send and return lines to the heater core and connect them together ...

Disconnect the send and return lines from the heater core and use a hose coupling and hose clamps to connect these two lines together ...

Heater coolant bypass pipe It would be the return hose for the heater.

No , if you were to bypass the heater core , you would have no heat

Disconnect both heater hoses from heater core and connect them together

Disconnect both hoses and just use or buy a u-shape hose and that will be your by-pass....... ...

I believe that is a bypass tee that allow coolant to go to your heater core for your heater. ...

no, u should not hear anything when block heater is plugged in

Usually, with a plugged heater core there will be a bit of heat but not very much..I've only seen a few so plugged that there was no heat. One way to tell is to (carefully) touch the heater hoses just where they go into the heater core. Both hoses should be about the same temperature. If not and the heater control valve is open - then the heater core being plugged is a very good possibility. ...

did the heater core start leaking? anyway you should have no problem with the air if you bypass the heater core. ...

If you bypass it correctly you will just no longer have any interior heat. Simply disconnect the heater hoses and connect them together. Connect the Inlet hose & Outlet hose going to the heater core together using a connector that you can purchase at most auto parts stores. By doing this you are simply routing the coolant away from the heater core. WARNING: Do not plug either of these hoses!!!! ...

If the heater core is plugged you can try flushing it out. Disconnect the two heater hoses from the engine, connect a garden hose to either hose leading to the heater and gently turn on the water, gradually open water valve all the way until water runs clear then switch water hose to opposite heater hose and repeat. If the heater core is leaking and needs replacement I would strongly suggest purchasing a shop manual to walk you through the job...

disconnect the two hoses coming out of the fire wall from the heater core and put a coupling {small peace of pipe that fits inside the two hoses } and a few hose clamps DONE. ...

Loosen the clamps and carefully twist the hose where it connects to the heater core. If you are wanting to bypass the heater core, just run one of the hoses between the two places on the motor where they connect or put a short piece of pipe between the two hoses. ...

Best to get the shop manual but basically: Reomove Heater hoses from engine block and drain. Remove glove box. Disconnect cables that connect to heater core. Disconnect heater core from firewall. Disconnect hoses from heater core. Pull heater core from under dash. ...

Upper and lower radiator, inlet and outlet heater core, bypass, Upper and lower radiator, inlet and outlet heater core, bypass, ...

find the two hoses that run from the engine block to the firewall, they should be about the thickness of a garden hose. Disconnect both of them from the firewall and connect them together. No water will ruin in to the heater core=no heat or leakage. ...

Disconnect the heater inlet and outlet hoses at the firewall and then connect them together. You can buy the parts necessary at any auto parts store. Just tell them what you want to accomplish and they can sell you the parts needed. ...

Simply disconnect the heater hoses going to and from the heater, (Inlet & Outlet) at the firewall. Purchase the proper size hose coupling that will allow you to connect the 2 hoses together. Do not plug these hoses, just connect them together. The coolant will now not flow through the heater core. ...

you would have to bypass the heater core first.

You can buy aftermarket headers with no heater boxes.