ignition NISSAN ALTIMA 2009 Owner's Guide

CAUTION
●Never place anything except the Intelli-
gent Key in the Intelligent Key port. Do-
ing so may cause damage to the
equipment.
●Make sure the Intelligent Key is in the
correct direction when inserting it to
the Intelligent Key port. The engine may
not start if it is in the wrong direction.
●Remove the Intelligent Key from the
Intelligent Key port after the ignition
switch is pushed to the LOCK position.
WSD0233

CAUTION
●Do not work under the hood while the
engine is hot. Turn the engine off and
wait until it cools down.
●Avoid contact with used engine oil and
coolant. Improperly disposed engine
oil, engine coolant and/or other vehicle
fluids can damage the environment. Al-
ways conform to local regulations for
disposal of vehicle fluid.●Never leave the engine or the CVT re-
lated component harness connector
disconnected while the ignition switch
is in the ON position.
●Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
●Your vehicle is equipped with an auto-
matic engine cooling fan. It may come
on at any time without warning, even if
the ignition key is in the OFF position
and the engine is not running. To avoid
injury, always disconnect the negative
battery cable before working near the
fan.
This “Maintenance and do-it-yourself” section
gives instructions regarding only those items
which are relatively easy for an owner to perform.
A genuine NISSAN service manual is also avail-
able. See “Owner’s Manual/Service Manual or-
der information” in the “Technical and consumer
information” section of this manual.
You should be aware that incomplete or improper
servicing may result in operating difficulties or
excessive emissions, and could affect warranty
coverage.If in doubt about any servicing,
have it done by a NISSAN dealer.
MAINTENANCE PRECAUTIONS
Maintenance and do-it-yourself8-5
REVIEW COPY—2009 Altima(alt)
Owners Manual—USA_English(nna)
09/08/08—debbie


WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
If replacement is required, see your NISSAN
dealer for assistance.
SDI1895
SPARK PLUGS

ModelQR25DE VQ35DE
TypeGasoline, 4-cycle, DOHC Gasoline, 4-cycle, DOHC
Cylinder arrangement 4-cylinder in-line 6-cylinder, V-block, Slanted at 60°
Bore x Stroke in (mm) 3.5 x 3.9 (89.0 x 100.0) 3.760 x 3.205 (95.5 x 81.4)
Displacement cu in (cm
3) 151.82 (2,488) 213.45 (3,498)
Firing order1–3–4–2 1–2–3–4–5–6
Idle speed
M/T
CVT (in “N” position) No adjustment is necessary.
Ignition timing (degree B.T.D.C. at idle
speed)
CO%atidle
Spark plugDILKAR6A-11 FXE22HR-11
Spark plug gap (Nominal) in (mm) 0.043 (1.1) 0.043 (1.1)
Camshaft operation Timing chain Timing chain
This spark ignition system complies with the Canadian standard ICES-002.
SPECIFICATIONS
Technical and consumer information9-7
REVIEW COPY—2009 Altima(alt)
Owners Manual—USA_English(nna)
09/08/08—debbie