On a 1993 Chevy G-20 Sports Van, the heater hoses are typically located on the engine's firewall, connecting the engine's cooling system to the heater core inside the cabin. One hose comes from the engine block or intake manifold, while the other returns from the heater core to the engine. You may need to lift the hood and look toward the back of the engine compartment to find them. Always ensure the engine is cool before inspecting or handling the hoses.
The Chevy heater hose removal tool is a plastic piece that clamps around the hose. The tool slides into the fitting to release the hose.
On a 1993 Chevy G-20 van, the heater hose is typically located on the engine compartment's passenger side. One hose runs from the engine’s water pump to the heater core, while the other returns from the heater core back to the engine. You can follow the hoses from the firewall, where they connect to the heater core, to identify their paths. Always ensure the engine is cool before inspecting or working on any hoses to avoid burns or injuries.
removal of heater hose from engine to fire wall
Cool the heater hose and then gently take it off
Generally, the upper heater hose leads to the water pump.
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.
to engine and rad
That hose goes to your heater core, follow the hose to passenger side of the firewall.
Heater core? Inlet or outlet hose fitting at heater core?
If your van is equipped with rear heater the water pump will have all small holes plugged, only lower radiator hose is attached. The interior heater hose comes from radiator. from: giffen49 1993 Chev G20 350ci
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5/8" and 3/4"