why is the coolant is not running through the radiator? on 1997 Cadillac Seville SLS

everytime i pull the hose apart the coolant is coming out but when i starts it, it won't go through.

by in Rehoboth Beach, DE on January 19, 2013
1 answer
ANSWER by , January 19, 2013
The cooant will not flow through radiator until thermostat opens.