casee Posted February 9, 2005 Share Posted February 9, 2005 Hi All. After replacing thermostat in my LS400 '91, i lost some coolant fluid after refilling can't get out air bubbles of outcoming hose from heating radiator. While accelerating up to 5000rpm flow from water pump can not push it out.iIt seems it is a highest point in cooling system. It ain't no fun to drive at -20 degrees celcius. Quote Link to comment Share on other sites More sharing options...
914lps Posted February 10, 2005 Share Posted February 10, 2005 Hi All.After replacing thermostat in my LS400 '91, i lost some coolant fluid after refilling can't get out air bubbles of outcoming hose from heating radiator. While accelerating up to 5000rpm flow from water pump can not push it out.iIt seems it is a highest point in cooling system. It ain't no fun to drive at -20 degrees celcius. ← Sorry if I’m not getting it??? Are you saying that your heater is not warming up? If so, I would not think it is a trapped air bubble, as the unit not heating up would indicate that the heater valve is not opening, or the line is blocked??? Quote Link to comment Share on other sites More sharing options...
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