Inspection After Removal

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

To avoid the risk of injury to eyes and skin, when using caustic solutions, solvents, acids, or alkaline materials follow the manufacturers recommendations for use and wear appropriate eye protection and protective clothing. Some of these materials are also flammable. To avoid risk of fire or burns, never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equipment) in the work area. Avoid spilling onto a hot exhaust manifold which can cause a fire.

WARNING: When using compressed air for cleaning, to avoid the risk of personal injury from flying debris and dirt:

Do not exceed 207 kPa (2.111 kg/cm ² , 30psi).
Wear appropriate eye protection and protective clothing including gloves.

Clean the water outlet connection with solvent and dry with compressed air.

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Inspect the outlet connection for damage. Replace the outlet connection and thermostat if damage is present.

(A)

:NG
Clean the mating surfaces on the front cover with a clean cloth. Inspect the front cover for corrosion, cracks, and other damage.

(A)

:NG

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CAUTION:
To avoid possible engine and system damage or performance issues:
- Brush away all dirt and debris from the are prior to opening any fuel, air intake, exhaust, cooling, after treatment or other engine system.
- To avoid contamination, any open engine system ports must be closed immediately with clean care caps or an appropriate covering.
- Do not allow any debris to fall into the engine.
- Do not allow any chemical cleaners to enter the engine or any open systems during the cleaning process.
Inspect the thermostat for external damage. Inspect for cracks, embedded debris, damaged seat, and other damage.

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Inspect thermostat seal for cracks or tears.
CAUTION: Replace the thermostat and water outlet connection if any damage is found.
If the thermostat is suspected to be malfunctioning, measure the opening temperature of the thermostat to determine if the thermostat is functioning correctly.

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Suspend the thermostat and a 100°C [212°F] thermometer in a container of water.

NOTE: Do not allow the thermostat or thermometer to touch the container.

Heat the water and check the thermostat as follows; the thermostat must meet the following specification:

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NOTE: The nominal operating temperature is stamped on the thermostat. To verify the correct temperature range thermostat is installed, make sure to reference the appropriate parts information resources.

Thermostat Nominal Temperature

: Refer to Standard and Limit .

Thermostat Opening Temperature
mm		in
90		MIN	195
94	MAX	202
Fully Opened	106	MAX	222