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Home >> Nissan-Datsun >> 2011 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0506 To P2A00 (MR20DE) (Except CALIFORNIA) >> DTC P1217 Engine Over Temperature >> Main 13 Causes of Overheating

Main 13 Causes of Overheating

OVERHEATING CAUSES REFERENCE CHART

Engine Step Inspection item Equipment Standard Reference Information
OFF 1
  • Blocked radiator
  • Blocked condenser
  • Blocked radiator grille
  • Blocked bumper
  • Visual
 No blocking -
2
  • Coolant mixture
  • Coolant tester
 See "ENGINE COOLING SYSTEM ".
3
  • Coolant level
  • Visual
 Coolant up to MAX level in reservoir tank and radiator filler neck See "INSPECTION ".
4
  • Radiator cap
  • Pressure tester
 See "INSPECTION ".
ON(2) 5
  • Coolant leaks
  • Visual
 No leaks See "INSPECTION ".
ON(2) 6
  • Thermostat
  • Touch the upper and lower radiator hoses
 Both hoses should be hot See THERMOSTAT , and RADIATOR
ON(1) 7
  • Cooling fan
  • CONSULT-III
 Operating See trouble diagnosis for DTC P1217 ( "DIAGNOSIS PROCEDURE ").
OFF 8
  • Combustion gas leak
  • Color checker chemical tester 4 Gas analyzer
 Negative -
ON(3) 9
  • Coolant temperature gauge
  • Visual
 Gauge less than 3/4 when driving -
  • Coolant overflow to reservoir tank
  • Visual
 No overflow during driving and idling See CHECKING RADIATOR .
OFF(4) 10
  • Coolant return from reservoir tank to radiator
  • Visual
 Should be initial level in reservoir tank See ENGINE COOLANT .
OFF 11
  • Water control valve
  • Remove and inspect the valve
 Within the specified value See WATER OUTLET AND WATER CONTROL VALVE
OFF 12
  • Cylinder head
  • Straight gauge feeler gauge
 0.1 mm (0.004 in) Maximum distortion (warping) See CYLINDER HEAD .
13
  • Cylinder block and pistons
  • Visual
 No scuffing on cylinder walls or piston See CYLINDER BLOCK .
(1) Turn the ignition switch ON.
(2) Engine running at 3, 000 RPM for 10 minutes.
(3) Drive at 90 km/h (56 MPH) for 30 minutes and then let idle for 10 minutes.
(4) After 60 minutes of cool down time.

For more information, refer to OVERHEATING CAUSE ANALYSIS .

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