PR25DD engine

WARNING: This page is about a different variant/trim than selected.

Symptom			Check items
Cooling system parts malfunction	Poor heat transfer	Water pump malfunction	Worn or loose drive belt	--
		Thermostat stuck closed	Coolant circulation
		Damaged fins	Dust contamination or rock clogging
			Mechanical damage
		Clogged radiator cooling tube	Excess foreign material (rust, dirt, sand, etc.)
	Reduced air flow	Cooling fan does not operate	Engine cooling fans	--
		High resistance to fan rotation
		Damaged fan blades
	Damaged radiator shroud	--	Radiator shroud	--
	Improper coolant mixture ratio	--	Coolant viscosity	--
	Poor coolant quality	--	Periodic maintenance	--
	Insufficient coolant	Coolant leaks	Cooling hose	Loose clamp
				Cracked hose
			Water pump	Poor sealing
			Radiator cap	Loose
				Poor sealing
			Radiator	O-ring for damage, deterioration or improper fitting
				Cracked radiator tank
				Cracked radiator core
			Reservoir tank	Cracked reservoir tank
		Overflowing reservoir tank	Exhaust gas leaks into cooling system	Cylinder head deterioration
				Cylinder head gasket deterioration
Except cooling system parts malfunction	--	Overload on engine	Abusive driving	High engine rpm under no load
				Driving in low gear for extended time
				Driving at extremely high speed
			Powertrain system malfunction	--
			Installed improper size wheels and tires
			Dragging brakes
			Improper ignition timing
	Blocked or restricted air flow	Blocked radiator grille	Installed car brassiere	--
			Mud contamination or paper clogging
		Blocked bumper
		Blocked radiator
		Blocked condenser
		Installed large fog lamp