LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2010 >> M45 x >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0460 To P1421 >> DTC P1217 Engine Over Temperature >> Main 13 Causes of Overheating
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Main 13 Causes of Overheating

INSPECTION ITEM REFERENCE CHART

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
 "ANTI-FREEZE COOLANT MIXTURE RATIO "
3
  • Coolant level
  • Visual
 Coolant up to MAX level in reservoir tank and radiator filler neck "INSPECTION "
4
  • Radiator cap
  • Pressure tester
 "CHECKING RADIATOR CAP "
ON(2) 5
  • Coolant leakage
  • Visual
 No leakage "INSPECTION "
ON(2) 6
  • Thermostat
  • Touch the upper and lower radiator hoses
 Both hoses should be hot "REMOVAL AND INSTALLATION "
ON(1) 7
  • Cooling fan
  • CONSULT-III
 Operating See trouble diagnosis for DTC P1217 ( DTC P1217 ENGINE OVER TEMPERATURE ).
OFF 8
  • Combustion gas leakage
  • 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
  • Water control valve
  • Remove and inspect the valve
 Within the specified value "REMOVAL AND INSTALLATION "
OFF 12
  • Cylinder head
  • Straight gauge feeler gauge
 0.1 mm (0.004 in) Maximum distortion (warping) "INSPECTION AFTER DISASSEMBLY "
13
  • Cylinder block and pistons
  • Visual
 No scuffing on cylinder walls or piston "DISASSEMBLY AND ASSEMBLY "
(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 "TROUBLESHOOTING CHART ".

scientia non olet · About LEMON Manuals