E8 Coolant control valve mechanically - Blocked closed - P20A1 Vent valve test Plausibility test (start-up)
Coolant control valve mechanically - Blocked closed - P20A1 Vent valve test plausibility test (startup)
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.