If the recovery tank is not being emptied, probable causes are :
1. A bad head gasket. The coolant is being pushed to the recovery tank due to the pressure building up.
2. A bad radiator cap. Coolant is sent to the recovery tank and air is being drawn in instead of coolant from the recovery tank.
3. Leakage between the recovery tank and radiator hose. Same reason as 2 above.
Thursday, January 2nd, 2020 AT 8:11 PM