Home » Car Questions » Blew upper radiator hose Jeep 1999 Grand Cherokee 4WD 4.7L FI SOHC 8cylBlew upper radiator hose Jeep 1999 Grand Cherokee 4WD 4.7L FI SOHC 8cylJuly 14, 2018I blew upper radiator hose. Could a bad heater core cause that?No.Car Engine Overheating ExplainedKeywords:Blew upper radiator hoseGrand CherokeepreviousNo transmission oil dipstick Chrysler Town and CountrynextTurn Signal Bulb Replacement 1988 Oldsmobile Delta 88