Nissan Altima L32. Manual - part 926

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ENGINE MAINTENANCE (QR25DE)

CAUTION:

• Be sure to clean the oil pan drain plug and install using a new washer.

• The refill capacity depends on the oil temperature and drain time. Use these specifications for

reference only. Always use the dipstick to determine when the proper amount of oil is in the

engine.

7. Warm up the engine and check around the drain plug and oil filter for oil leaks.
8. Stop the engine and wait for 10 minutes.
9. Check the oil level using the dipstick.

CAUTION:

Do not overfill the engine oil.

OIL FILTER
OIL FILTER : Removal and Installation

INFOID:0000000004523226

REMOVAL

1. Remove the oil filter using Tool.

WARNING:

• Be careful not to get burned, the engine and engine oil

may be hot.

CAUTION:

• When removing, prepare a shop cloth to absorb any oil

leakage or spillage.

• Do not allow engine oil to adhere to the drive belts.

• Completely wipe off any oil that adheres to the engine and

the vehicle.

• The oil filter has a built in pressure relief valve. Use a gen-

uine NISSAN oil filter or equivalent

INSTALLATION

1. Remove foreign materials adhering to the oil filter installation surface.
2. Apply clean engine oil to the oil seal contact surface of the new

oil filter.

Tool number

: KV10115801 (J-38956)

WBIA0589E

ALC094

SMA010

ENGINE MAINTENANCE (QR25DE)

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3. Screw the oil filter manually until it touches the installation sur-

face, then tighten it by 2/3 turn. Or tighten to specification below.

4. Check oil level and add engine oil as necessary. Refer to 

LU-9

.

5. After warming up the engine, check for any engine oil leaks.

SPARK PLUG
SPARK PLUG : Removal and Installation

INFOID:0000000004523227

REMOVAL

1. Remove the ignition coil. Refer to 

EM-35, "Removal and Installation"

.

2. Remove the spark plug with a suitable spark plug wrench.

INSPECTION AFTER REMOVAL

Oil filter : 18.0 N·m (1.8 kg-m, 13 ft-lb)

SMA229B

1.

Ignition coil

2.

Spark plug

3.

Rocker cover

AWBIA0208GB

PBIC2982E

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ENGINE MAINTENANCE (QR25DE)

• Do not use a wire brush for cleaning the spark plugs. Replace as

necessary. 

• If plug is covered with carbon, a spark plug cleaner may be used.

• Checking and adjusting plug gap is not required between change

intervals. If the gap is out of specification, replace the spark plug.

INSTALLATION

Installation is in the reverse order of removal.

EVAP VAPOR LINES
EVAP VAPOR LINES : Inspection

INFOID:0000000004202054

1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,

chafing and deterioration.

2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc.

SMA773C

Cleaner air pressure : less than 588 kPa (6 kg/cm

2

, 85 psi)

Cleaning time

: less than 20 seconds

Gap (nominal)

: 1.1 mm (0.043 in)

SMA806CA

Temperature range

NGK

Standard type

DILKAR6A-11

Gap (nominal)

1.1 mm (0.043 in)

ENGINE MAINTENANCE (VQ35DE)

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ENGINE MAINTENANCE (VQ35DE)

DRIVE BELTS
DRIVE BELTS : Checking Drive Belts

INFOID:0000000004523228

WARNING:

Inspect and check the drive belts with the engine off.
1. Inspect belt for cracks, fraying, wear or oil adhesion. If necessary, replace with a new one.
2. Rotate the crankshaft pulley two times then check the belt tension.

NOTE:

• Inspect drive belt tension when   engine is cold.

DRIVE BELTS : Tension Adjustment

INFOID:0000000004202056

• Belt tension is not manually adjustable, it is automatically adjusted by the drive belt auto-tensioner.

ENGINE COOLANT
ENGINE COOLANT : Changing Engine Coolant

INFOID:0000000004202057

WARNING:

• To avoid being scalded, never change the coolant when the engine is hot.

• Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn to

release built-up pressure. Then turn the cap all the way.

DRAINING ENGINE COOLANT

1. Open radiator drain plug at the bottom of radiator and remove the radiator filler cap. This is the only step

required for a partial cooling system drain. 

2. If removing the heater core, remove the upper heater hose from the engine coolant outlet and apply mod-

erate air pressure of 15 psi (103.46 kPa, 1.055 kg-cm

2

 ) maximum for 30 seconds into the hose to blow

out excess coolant from the core.

3. For a complete cooling system drain, remove the reservoir tank and drain the coolant, and then clean the

reservoir tank before installation.

• Do not allow coolant to spill on the drive belts.

AWBIA0707ZZ

1.

Power steering pump

2.

Drive belt auto-tensioner

3.

Crankshaft 

4.

Idler pulley

5.

A/C compressor pulley

6.

Generator pulley

7.

Idler pulley

8.

Drive belt

A.

Indicator

B.

Possible use range (for new belt) C.

Belt replacement