Nissan Sentra. Manual - part 621

LU-4

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PREPARATION

PREPARATION

PREPARATION

Special Service Tools

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The actual shape of the tools may differ from those illustrated here.

Commercial Service Tools

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Tool number
(TechMate No.)
Tool name

Description

ST25051001
(J-25695-1)
Oil pressure gauge

Measuring oil pressure
Maximum measuring range: 2,452 kPa (25 
kg-cm

2

, 356 psi)

ST25052000
(J-25695-2)
Hose

Adapting oil pressure gauge to upper oil pan

KV10115801
(J-38956)
Oil filter wrench

Removing and installing oil filter

KV10111100
(J-37228)
Seal cutter

Removing oil pan (lower) etc.

NT050

S-NT559

S-NT772

S-NT046

PREPARATION

LU-5

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Tool name

Description

Deep socket

Removing and installing oil pressure sensor 
27 mm (1.06 in)

Tube presser 

Pressing the tube of liquid gasket

PBIC4066E

NT052

LU-6

< SYSTEM DESCRIPTION >

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DESCRIPTION

SYSTEM DESCRIPTION

DESCRIPTION

Engine Lubrication System Schematic

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JSBIA2841GB

ENGINE OIL

LU-7

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PERIODIC MAINTENANCE

ENGINE OIL

Inspection

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ENGINE OIL LEVEL

NOTE:

Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop

it and allow 10 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and check that the engine oil level is within

the range (A) shown.

3. If engine oil is out of range, adjust it.

ENGINE OIL APPEARANCE

• Check engine oil for white turbidity or heavy contamination.

• If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.

Repair or replace damaged parts.

ENGINE OIL LEAKAGE 

Check for engine oil leaks around the following areas.

• Oil cooler

• Oil temperature sensor

• Oil pan (upper and lower)

• Oil pan drain plug

• Oil pressure sensor

• Oil filter

• Valve timing control cover

• Valve timing control solenoid valve (intake and exhaust)

• Front cover

• Mating surface between cylinder head and camshaft bracket

• Mating surface between cylinder block and cylinder head

• Mating surface between camshaft bracket and rocker cover

• Crankshaft oil seals (front and rear)

OIL PRESSURE CHECK

WARNING:

• Be careful not to get burned, as engine oil may be hot.

• When checking engine oil pressure, shift position should be “P” (CVT models) or “N” (M/T models),

and apply parking brake securely.

1. Check engine oil level. 

PBIC3309J