Nissan Altima (L32) 2007-2012 Service Manual ≻ Maintenance ≻ On-vehicle maintenance ≻ Engine maintenance (QR25DE) ≻ Spark plug

Nissan Altima (L32) 2007-2012 Service Manual: Spark plug

Removal and Installation

1. Ignition coil

2. Spark plug

3. Rocker cover

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

• 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.

Oil filter

Removal and Installation 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 ...

Evap vapor lines

Inspection 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 valv ...

Other materials:

Warning/Indicator lights (red)
For additional information on warnings and indicators, see "Vehicle information display - 5 inch (13 cm) Type A" or "Vehicle information display - 7 inch (18cm) Type B". or Brake warning light This light functions for both the parking brake and the foot brake systems. Parking brake indicator (if s ...

Intelligent Cruise Control (ICC) (for vehicles with ProPILOT Assist)
WARNING Failure to follow the warnings and instructions for proper use of the ICC system could result in serious injury or death. The ICC system is only an aid to assist the driver and is not a collision warning or avoidance device. It is recommended for highway use only and it is not intended ...

Brakes
If the brakes do not operate properly, have the brakes checked. It is recommended that you visit a NISSAN dealer for this service. Self-adjusting brakes Your vehicle is equipped with self-adjusting brakes. The front and rear disc-type brakes self-adjust every time the brake pedal is applied. WARNIN ...