Nissan Frontier D40. Manual - part 827

PREPARATION

LU-19

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Tool name

Description

Power tool

Loosening nuts and bolts

Deep socket

Removing and installing oil pressure switch
a: 24 mm (0.94 in)

PBIC0190E

PBIC2072E

LU-20

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LUBRICATION SYSTEM

FUNCTION DIAGNOSIS

LUBRICATION SYSTEM

Lubrication Circuit

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System Chart

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PBIC2821E

PBIC2822E

ENGINE OIL

LU-21

< ON-VEHICLE MAINTENANCE >

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ON-VEHICLE MAINTENANCE

ENGINE OIL

Inspection

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OIL LEVEL

• Before starting the engine make sure the vehicle is parked on a flat

and level surface, then check the oil level. If the engine is already
running, turn it off and allow 10 minutes before checking.

• Pull out oil level gauge and wipe clean.
• Insert oil level gauge.
• Check that the oil level is within the low (L) and high (H) range as

indicated on the dipstick.

• If the engine oil level is out of range, add oil as necessary. Refer to

MA-16, "For North America: Fluids and Lubricants"

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CAUTION:

Do not overfill the engine with oil.

OIL APPEARANCE

• Check the engine oil for a white milky appearance or excessive contamination.
• If the engine oil is milky, it is highly probable that it is contaminated with engine coolant. Repair or replace

damaged parts.

OIL LEAKAGE

Check for oil leakage around the following areas:
• Oil pans (lower and upper)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Oil cooler
• Water pump cover
• Chain tensioner cover
• Intake valve timing control cover and intake valve timing control solenoid valve
• Mating surface between cylinder block and cylinder head
• Mating surface between lower cylinder block and cylinder block
• Mating surface between cylinder head and rocker cover
• Mating surface between front timing chain case and rear timing chain case
• Mating surface between rear timing chain case and cylinder head
• Mating surface between rear timing chain case and cylinder block
• Mating surface between rear timing chain case and lower cylinder block
• Mating surface between rear timing chain case and oil pan (upper)
• Crankshaft oil seals (front and rear)
• Oil level gauge guide
• Camshaft position sensor (PHASE)

OIL PRESSURE CHECK

WARNING:

• Be careful not to burn yourself, as the engine and engine oil may be hot.
• Put the A/T shift selector in the Park (P) position (A/T models) or Neutral position (M/T models), and

apply parking brake securely.

1.

Check engine oil level. Refer to 

LU-21, "Inspection"

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2.

Remove engine under cover. Refer to 

EXT-13, "Removal and Installation"

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PBIC2823E

LU-22

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ENGINE OIL

3.

Disconnect the oil pressure switch (B) harness connector.
• A: Oil pan (upper)
•

: Front

4.

Remove the oil pressure switch (B).

CAUTION:

Do not drop or shock oil pressure switch.

5.

Install Tools.

6.

Start the engine and warm it up to normal operating temperature.

7.

Check the engine oil pressure with engine running under no-load. Refer to 

LU-30, "Standard and Limit"

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CAUTION:

If the difference is extreme, check the oil passages and oil pump for leaks and blockages.

8.

After the inspections, install oil pressure switch as follows:

a.

Remove old liquid gasket adhering to oil pressure switch and engine.

b.

Apply liquid gasket and tighten oil pressure switch to the specification.
Use Genuine RTV Silicone Sealant or equivalent. Refer to 

GI-22, "Recommended Chemical Prod-

ucts and Sealants"

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c.

After warming up engine, make sure there is no leakage of engine oil with running engine.

Changing Engine Oil

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WARNING:

• Be careful not to burn yourself, as the engine and engine oil may be hot.
• Prolonged and repeated contact with used engine oil may cause skin cancer; try to avoid direct skin

contact with used oil. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as
possible.

1.

Warm up the engine, and check for any oil leaks.

2.

Stop the engine and wait for at least 10 minutes.

3.

Remove the oil drain plug and oil filler cap to drain the old oil.

4.

Install a new washer on the oil drain plug, then install the oil drain plug in the oil pan.

CAUTION:

Clean the drain plug and install with a new washer.

5.

Refill the engine with new specified engine oil.

WBIA0813E

Tool numbers

: ST25051001 (J-25695-1)

: ST25052000 (J-25695-2)

WBIA0571E

Oil pressure switch torque

: 14.7 N·m (1.5 kg-m, 11 ft-lb)

Oil drain plug

: Refer to 

EM-149, "Removal and Installation"

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