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The type of brake system with vacum assist will have a large diameter hose from somewhere on the intake manifold to the brake booster. The type of brake system with hydro-boost will have hoses from the power steering pump to the brake booster.
fuse box chevy g20 van
Under the dash you will see the switch on a braket behind the brake pedel. Unplug remove and there you go
R134a
4.6
NO
A 95 did not have IAT sensor
Most common were 4l60 & 4l80
I don't think there were any carburetors on the 1995 G20's so it is an electrical fuel pump inside the tank.
Read your owner's manual.
what size of transmission goes on chevy g20 cargo van 1995
motor on bed stays runing