7A Coolant control valve mechanically - mechanical defective blocked closed - P20A0 Vent valve (Reductant Purge Control Valve) Open circuit
Coolant control valve mechanically - mechanical defective blocked closed - P20A0 Vent valve (Reductant Purge Control Valve) -open circuit
3-point Hitch Fails To Lift,Low oil level.Worn hydraulic pump.Rate of drop valve closed.Excessive load on hitch.Hydraulic oil too cold.Hydraulic oil suction filter plugged.