Main 12 Causes of Overheating
OVERHEATING CAUSES
| Engine | Step | Inspection item | Equipment | Standard | Reference | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OFF | 1 |
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No blocking | - | ||||||||
| 2 |
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50 - 50% coolant mixture | ANTI-FREEZE COOLANT MIXTURE RATIO | |||||||||
| 3 |
|
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Coolant up to MAX level in reservoir tank and radiator filler neck | ENGINE COOLANT | |||||||||
| 4 |
|
|
88 - 127 kPa (0.90 - 1.30 kg/cm2 , 12.8 - 18.4 psi) (Limit) | CHECKING RADIATOR CAP | |||||||||
| ON(2) | 5 |
|
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No leaks | LEAK CHECK | ||||||||
| ON(2) | 6 |
|
|
Both hoses should be hot | WATER INLET AND THERMOSTAT ASSEMBLY | ||||||||
| ON(1) | 7 |
|
|
Operating | See trouble diagnosis for DTC P1217 ( DTC P1217 ENGINE OVER TEMPERATURE ). | ||||||||
| OFF | 8 |
|
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Negative | - | ||||||||
| ON(3) | 9 |
|
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Gauge less than 3/4 when driving | - | ||||||||
|
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No overflow during driving and idling | ENGINE COOLANT | ||||||||||
| OFF(4) | 10 |
|
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Should be initial level in reservoir tank | ENGINE COOLANT | ||||||||
| OFF | 11 |
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0.1 mm (0.004 in) Maximum distortion (warping) | CHECKING COMPRESSION PRESSURE | ||||||||
| 12 |
|
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No scuffing on cylinder walls or piston | CYLINDER BLOCK | |||||||||
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For more information, refer to "OVERHEATING CAUSE ANALYSIS ".