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Home >> Nissan-Datsun >> 2002 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 2359 (Engine Control System - DTCS P1148 To P2A03) >> DTC P1217 Engine Over Temperature >> Main 12 Causes of Overheating
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Main 12 Causes of Overheating

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
MAIN 12 CAUSES OF OVERHEATING

Engine Step Inspection item Equipment Standard Reference
OFF 1
  • Blocked radiator
  • Blocked condenser
  • Blocked radiator grille
  • Blocked bumper
  • Visual
No blocking -
2
  • Coolant mixture
  • Coolant tester
50 - 50% coolant mixture "RECOMMENDED FLUIDS AND LUBRICANTS "
3
  • Coolant level
  • Visual
Coolant up to MAX level in reservoir tank and radiator filler neck "CHANGING ENGINE COOLANT "
4
  • Reservoir tank cap
  • Pressure tester
95 - 125 kPa (0.97 - 1.28 kg/cm2 , 14 - 18 psi) (Limit) "CHECKING RESERVOIR CAP "
ON(2) 5
  • Coolant leaks
  • Visual
No leaks "CHECKING COOLING SYSTEM FOR LEAKS "
ON(2) 6
  • Thermostat
  • Touch the upper and lower radiator hoses
Both hoses should be hot "THERMOSTAT AND WATER PIPING "
ON(1) 7
  • Cooling fan
  • CONSULT-II
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 "CHANGING ENGINE COOLANT "
OFF(4) 10
  • Coolant return from reservoir tank to radiator
  • Visual
Should be initial level in reservoir tank "CHANGING ENGINE COOLANT "
OFF 11
  • Cylinder head
  • Straight gauge feeler gauge
0.1 mm (0.004 in) Maximum distortion (warping) "INSPECTION AFTER DISASSEMBLY "
12
  • Cylinder block and pistons
  • Visual
No scuffing on cylinder walls or piston "INSPECTION AFTER DISASSEMBLY "
(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 ".