Malfunction Signs Tables (Freelander 2)

Leaks

Sign of malfunction	Possible reason	Action
External coolant leaks	Damage to hose(s) Damage to the expansion tank Damaged radiator Leaking seals/gaskets Cracks/damage in castings	Regarding cooling system leaks. For more information, refer to: Engine Cooling (303-03B Engine Cooling - 2.2L Duratorq - Td4, Diagnostics and Tests).
Internal coolant leaks. Note: This may be indicated by white smoke coming from the exhaust pipe	Leaking seals/gaskets Cracks/damage in castings	Check for coolant in engine oil and vice versa. Check for exhaust leaks through upper tank. For additional cooling system checks. For more information, refer to: Engine Cooling (303-03B Engine Cooling - 2.2L Duratorq - Td4, Diagnostics and Tests).
The engine gets very hot	Insufficient amount of coolant Low engine oil level Cooling system sealing cap malfunction Thermostat does not open Coolant pump malfunction Cooling fan malfunction	Check the coolant/engine oil level for correctness. For cooling system leaks. For more information, refer to: Engine Cooling (303-03B Engine Cooling - 2.2L Duratorq - Td4, Diagnostics and Tests).
Engine takes too long to warm up to reach operating temperature	Thermostat stuck open	Regarding cooling system leaks. For more information, refer to: Engine Cooling (303-03B Engine Cooling - 2.2L Duratorq - Td4, Diagnostics and Tests).
External oil leaks	Gaskets Seals Hoses Oil filter Oil radiator Damage/cracks in castings Engine crankcase ventilation system Gas breakthrough through piston rings	Clean the leak area and ensure that it is correctly identified. Visually inspect the condition of the oil circuit components. Check the positive crankcase ventilation system. For additional information, refer to: Emission Control (303-08B Emission Control - 2.2L Duratorq - Td4, Diagnostics and Testing). Perform a compression test, Go to PINPOINT TEST A.
Internal oil leaks (leaks into the coolant circuit or combustion chamber). Note: This may be indicated by blue smoke coming from the exhaust pipe	Gaskets Seals Hoses Damage/cracks in castings Wear of valve guide bushings Wear of cylinders/pistons Broken piston rings	Check for traces of oil in the coolant. Check for oil in the combustion chambers (deposits on glow plugs, etc.) Ensure that the oil consumption and vehicle operation by the owner/driver are correct. Perform an oil consumption check, Go to PINPOINT TEST B.

NOTE: Since the tests suggested here are subject to varying interpretations, they should be used only as a guide to action. Descriptions of noises, etc., are given in general terms, so the effectiveness of diagnosis depends largely on the experience of the mechanic.

NVH

Sign of malfunction	Possible reason	Action
Rattling/ticking noise coming from top of engine	Valve mechanism noise Camshaft Bearing Noise Valve timing chain noise Tensioner noise Vacuum pump noise High pressure fuel pump noise Leak in the injector	Check engine oil level and pressure, Go to PINPOINT TEST C. Check the operation of the hydraulic tappets and the condition of the camshaft lobes and bearings. Check the timing chains and tensioners, vacuum pump and high-pressure fuel pump. Check the injectors for leaks.
A creaking/squealing/squeaking noise coming from the front of the engine.	Auxiliary drive belt Auxiliary drive belt tensioner. Elements driven by the accessory drive belt	Check the accessory drive belt and components driven by the belt. For additional information, refer to: Accessory Drive (303-05B Accessory Drive - 2.2L Duratorq - Td4, Diagnostics and Testing).
Howling/banging/rumbling noise coming from the front of the engine.	Auxiliary drive belt Auxiliary drive belt tensioner. Elements driven by the accessory drive belt Timing belt noise Timing Belt Tensioner Noise	Check the accessory drive belt and components driven by the belt. For additional information, refer to: Accessory Drive (303-05B Accessory Drive - 2.2L Duratorq - Td4, Diagnostics and Testing). Check the timing belt and tensioners for noise/damage.
Knocking noise coming from the bottom of the engine (often worse when the engine is cold)	Low engine oil level/pressure Knocking of pistons Piston pin noise Connecting rod bearing noise	Check engine oil level and pressure, Go to PINPOINT TEST C. Check for foreign inclusions in the engine oil, check the condition of the engine components.
Knocking/humming noise coming from the bottom of the engine (often worsens when slowing down/engine braking)	Low engine oil level/pressure Main bearing noise	Check engine oil level and pressure, Go to PINPOINT TEST C. Check for foreign inclusions in the engine oil, check the condition of the engine components.
Howling/whistle	Leak in the air intake system Turbocharger damage (when the noise comes from the rear of the engine)	Check the air intake system components for looseness/damage Check for increased turbocharger shaft float Note: A small amount of turbocharger shaft float is normal and acceptable Check the turbocharger for general damage.
Misfire/Rough Running	Electronic engine controls Fuel supply and controls Leak in the air intake system Exhaust Gas Recirculation (EGR) System Valves sticking/sticking Wear of valve guide bushings Wear of cylinders/pistons Broken piston rings Damage/cracks in castings	For electronic engine controls. For additional information, refer to: Electronic Controls (303-14B Electronic Controls - 2.2L Duratorq - Td4, Diagnostics and Testing). For fuel delivery system and related controls tests. For additional information, refer to: Fuel Delivery and Controls (303-04B Fuel Delivery and Controls - 2.2L Duratorq - Td4, Diagnostics and Testing). Check the air intake system for damage/leakage. For EGR system tests. For additional information, refer to: Emission Control (303-08B Emission Control - 2.2L Duratorq - Td4, Diagnostics and Testing). Check for damaged engine components. Perform a compression test, Go to PINPOINT TEST A.