Rage_NecroVancersVC

Rebuilding a bunch of stuff on a 1986 Chevy G20 with the 350 in it, and the bottom heater core hose got completely disconnected. I have no idea where it goes. I feel dumb but any help would be awesome.

mountainmanjoe

It should go to the water pump, right by the other hose.

Rage_NecroVancersVC

By the radiator bottom hose? Because the top heater hose just runs to the radiator, right next to the cap.

Irish_alley

i would think the trucks and vans were set up in the same way and i know some water pumps have both hoses connected, but most times you have the 5/8s hose running from the heater core to the intake as a supply next to the thermostat and the 3/4 runs to the water pump or rad as a return in later models

mountainmanjoe

If the other heater hose goes to the radiator, then they did things differently in the 80's. Don't know, sorry.

cablesplicer

I just went and looked at my 1987 g30 with 350 v8 and the bottom hose goes to the frount of the intake just to the pass. Side [right side sitting in driver seat] of the thermstat housing and like yours the top goes to the rad. Good luck and hope this helps .

oilcanhenry

Thats how I remember them too, but who knows anymore?

Rage_NecroVancersVC

I found it! It was hiding under the new fuel line.

Rage_NecroVancersVC

Thanks for your help. I just needed to look a little harder. It was right there under a new fuel line: