Main 12 Causes of Overheating
WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
CAUSES OF OVERHEATING
| Engine | Step | Inspection item | Equipment | Standard | Reference page | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OFF | 1 |
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No blocking | - | ||||||||
| 2 |
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50 - 50% coolant mixture | SAE VISCOSITY NUMBER | |||||||||
| 3 |
|
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Coolant up to MAX level in reservoir tank and radiator filler neck | CHECKING RESERVOIR CAP | |||||||||
| 4 |
|
|
59 - 98 kPa (0.6 - 1.0 kg/cm2 , 9 - 14 psi) (Limit) | CHECKING RESERVOIR CAP | |||||||||
| ON(2) | 5 |
|
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No leaks | ENGINE COOLANT | ||||||||
| 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 ). | ||||||||
| ON(2) | 7 |
|
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Operating | See ENGINE COOLING FAN . | ||||||||
| 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 | CHECKING RESERVOIR CAP | ||||||||||
| OFF(4) | 10 |
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Should be initial level in reservoir tank | CHECKING RESERVOIR CAP | ||||||||
| OFF | 11 |
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0.1 mm (0.004 in) Maximum distortion (warping) | INSPECTION AFTER REMOVAL | ||||||||
| 12 |
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No scuffing on cylinder walls or piston | CYLINDER BLOCK | |||||||||
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