Engine Cooling System
M/T models
CVT and A/T models
Engine Cooling System Schematic
M/T models
CVT and A/T models
OVERHEATING CAUSE ANALYSIS
Troubleshooting Chart
Symptom |
Check items | |||
Cooling system parts malfunction | Poor heat transfer | Water pump malfunction | Worn or loose drive belt | |
Thermostat stuck closed | Thermostat | |||
Damaged fins | Dust contamination or paper clogging | |||
Physical damage | ||||
Clogged radiator cooling tube | Excess foreign material (rust, dirt, sand, etc.) | |||
Reduced air flow | Cooling fan does not operate | Fan assembly | ||
High resistance to fan rotation | ||||
Damaged fan blades | ||||
Damaged radiator shroud | Radiator shroud | |||
Improper engine coolant mixture ratio | Engine coolant viscosity | |||
Poor engine coolant quality | Periodic maintenance | |||
Insufficient engine coolant
|
Engine coolant leakage | Cooling hose | Loose clamp | |
Cracked hose | ||||
Water pump | Poor sealing | |||
Radiator cap | Loose | |||
Poor sealing | ||||
Radiator | Oring for damage, deterioration or improper fitting | |||
Cracked radiator tank | ||||
Cracked radiator core | ||||
Reservoir tank | Cracked reservoir tank | |||
Overflowing reservoir tank | Exhaust gas leaking 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 | ||||
Power train system malfunction | ||||
Installed improper size wheels and tires | ||||
Dragging brakes | ||||
Improper ignition timing | ||||
Blocked or restricted air flow | Blocked bumper | Installed front bumper fascia cover | ||
Blocked radiator grille | Mud contamination or paper clogging | |||
Blocked radiator | Blocked air flow | |||
Blocked condenser | ||||
Installed large fog lamp |
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRETENSIONER" The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRETENSIONER", used ...
U0141 Lost communication (BCM A)
Description
CAN (Controller Area Network) is a serial communication line for real-time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent malfunction
detection ability.
Many electronic control units are equipped onto a vehicle, and ...
Disc rotor
DISC ROTOR : Inspection and Adjustment
INSPECTION
Appearance
Check surface of disc rotor for uneven wear, cracks, and serious damage.
Replace it if necessary. Refer to
BR "DISC ROTOR : Inspection and Adjustment".
Runout
Fix the disc rotor to the wheel hub and bearing assembly wi ...