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Home >> Nissan-Datsun >> 2008 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P1211 Through P2A03 >> DTC P1217 Engine Over Temperature >> Main 12 Causes of Overheating
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Main 12 Causes of Overheating

ENGINE OVERHEATING SPECIFICATION

Engine Step Inspection item Equipment Standard Reference page
OFF 1
  • Blocked radiator
  • Blocked condenser
  • Blocked radiator grille
  • Blocked bumper
  • Visual
 No blocking -
2
  • Coolant mixture
  • Coolant tester
 50 - 50% coolant mixture FLUIDS AND LUBRICANTS
3
  • Coolant level
  • Visual
 Coolant up to MAX level in reservoir tank and radiator filler neck ENGINE COOLANT
4
  • Radiator cap
  • Pressure tester
 59 - 98 kPa (0.6 - 1.0 kg/cm2 , 9 - 14 psi) (Limit) RADIATOR
ON(2) 5
  • Coolant leaks
  • Visual
 No leaks ENGINE COOLANT
ON(2) 6
  • Thermostat
  • Touch the upper and lower radiator hoses
 Both hoses should be hot THERMOSTAT AND THERMOSTAT HOUSING
ON(1) 7
  • Cooling fan
  • CONSULT-III
 Operating See trouble diagnosis for DTC P1217 ( DTC P1217 ENGINE OVER TEMPERATURE ).
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 ENGINE COOLANT
OFF(4) 10
  • Coolant return from reservoir tank to radiator
  • Visual
 Should be initial level in reservoir tank ENGINE COOLANT
OFF 11
  • Cylinder head
  • Straight gauge feeler gauge
 0.1 mm (0.004 in) Maximum distortion (warping) CYLINDER HEAD
12
  • Cylinder block and pistons
  • Visual
 No scuffing on cylinder walls or piston CYLINDER BLOCK
(1) Turn the ignition switch ON.
(2) Engine running at 3, 000 rpm for 10 minutes.
(3) Drive at 90 km/h (55 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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