The importance of cleanliness during assembly cannot be overstated. Dirt or debris will cause engine damage. An automobile engine is a combination of many machined, honed, polished and lapped surfaces with minor tolerances. When any internal engine parts are serviced, care and cleanliness are important. A liberal coating of engine oil should be applied to friction areas during assembly in order to protect and lubricate the surfaces on initial operation. Throughout this section, it should be understood that proper cleaning and protection of machined surfaces and friction areas are part of the repair procedure. This is considered standard shop practice even if not specifically stated.
Use the proper tools to measure the components when checking for excessive wear. Components not within the manufacturer's specification must be repaired or replaced.
Lubricate all moving parts with engine oil or a specified assembly lubricant. This will provide lubrication for initial start up.
When the components are reinstalled into an engine, return the components to their original location, position, and direction.
Separating Parts
Special ToolsHood Ajar Indicator Description and Operation
Hood Ajar Switch
The body control module (BCM) applies B+ to the hood ajar signal circuit
and monitors the voltage to determine the position of the hood. When the hood
is closed, the switch is open and voltage remains high. When the hood is open,
the switch is closed and the voltag ...
Windshield deicer
Example
The Nissan Armada windshield deicer is specifically designed to remove ice buildup
from the lower windshield area, especially when wiper blades are frozen to the glass.
To activate the deicer in the Nissan Armada, start the engine and press the corresponding
switch. The indicator l ...
Sonar system limitations
WARNING
The following limitations apply to the Nissan Armada sonar system. Failure
to understand and follow these limitations may result in serious injury or even
fatal accidents.
Carefully review all limitations of the Nissan Armada sonar system. Environmental
conditions such as heavy r ...