QWKDTSN Posted February 20, 2004 Share Posted February 20, 2004 I was just sitting pondering my cooling system when I got to thinking, are my heater core hoses actually hooked up correctly? I believe they are but now I need reassurance. Upper hose - pressurized by pump - lower hose - return to intake manifold. Right? Quote Link to comment Share on other sites More sharing options...
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