Engine Cooling System Symptoms
Symptom Table
| Symptom | Check items | |||
|---|---|---|---|---|
| Cooling system parts malfunction | Poor heat transfer | Water pump malfunction | Worn or loose drive belt | — |
| Multi-way control valve stuck closed | — | |||
| Damaged fins | Dust contamination or paper clogging | |||
| Physical damage | ||||
| Clogged radiator cooling tube | Excess foreign material (rust, dirt, sand, etc.) | |||
| Reduced air flow | Cooling fan does not operate | Fan assembly | — | |
| High resistance to fan rotation | ||||
| Damaged fan blades | ||||
| Damaged radiator shroud | — | — | — | |
| Improper engine coolant mixture ratio | — | — | — | |
| Poor engine coolant quality | — | Engine coolant density | — | |
| Insufficient engine coolant | Engine coolant leakage | Cooling hose | Loose clamp | |
| Cracked hose | ||||
| Water pump | Poor sealing | |||
| Radiator cap | Loose | |||
| Poor sealing | ||||
| Radiator | O-ring for damage, deterioration or improper fitting | |||
| Cracked radiator tank | ||||
| Cracked radiator core | ||||
| Reservoir tank | Cracked reservoir tank | |||
| Overflowing reservoir tank | Exhaust gas leakage into cooling system | Cylinder head deterioration | ||
| Cylinder head gasket deterioration | ||||
| Except cooling system parts malfunction | — | Overload on engine | Abusive driving | High engine rpm under no load |
| Driving in low gear for extended time | ||||
| Driving at extremely high speed | ||||
| Powertrain system malfunction | — | |||
| Installed improper size wheels and tires | ||||
| Dragging brakes | ||||
| Improper ignition timing | ||||
| Blocked or restricted air flow | Blocked bumper | — | — | |
| Blocked radiator grille | Installed car brassiere | |||
| Mud contamination or paper clogging | ||||
| Blocked radiator | — | |||
| Blocked condenser | Blocked air flow | |||
| Installed large fog lamp | ||||
Other materials
Forward-facing child restraint installation using the seat belts
WARNING
When installing a forward-facing child restraint in the Nissan Armada,
the three-point seat belt must be placed into Automatic Locking Retractor (ALR)
mode.
If ALR mode is not activated, the child restraint may not be securely
fastened. This can cause the seat to shift or t ...
Hood Stay
Removal and Installation
CAUTION:
Perform work with 2 workers, because it is heavy weight.
Support hood with a proper material and use protective tape or shop cloth to protect hood and body from falling and damage when removing and installing hood stay.
REMOVALSupport hood assembly with a suita ...
Radiator
Inspection
Check radiator for mud or clogging. If necessary, clean radiator as per the following:
Be careful not to bend or damage radiator fins.
When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan assembly and horns. Then tape harness and connector ...