gurgleing sound from heater core area on 1992 Chevrolet 1500 Pickup

sound occurs when rpm increases have replaced heater core,thermostat,radiator,radiator cap

by in Portland, OR on April 04, 2011
1 answer
ANSWER by on May 17, 2011
check the heater valve or the vacuum hose or air in the cooling system
Related Items:
gurgling sound from heater core area when rpm increases have replaced radiator,thermostat,radiator cap,heater core, sound still there. have left radiator cap off while motor runs to operating temp ...