1999 Nissan Sentra Owner's Manual - Page 165

1999 Nissan Sentra Manual

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SPARK PLUG REPLACEMENT GA16DE Engine 1. Remove brackets as necessary to give access to the high tension cables and spark plugs. 2. Disconnect the spark plug cables from the spark plugs. When disconnecting, always hold the boots, not the cables. Mark all cables to identify their original locations. 3. Remove the spark plugs with a spark plug socket. DI1229M WARNING Be sure the engine and ignition switch are off and that the parking brake is engaged securely. The spark plug socket has a rubber seal that holds the spark plug so it does not fall when it is pulled out. Make sure each spark plug is snugly fitted into the spark plug socket. DI1017M 4. On conventional spark plugs, check the gap on each new spark plug with a feeler gauge. Use only the specified spark plugs. (The spark plug gap is shown in the ''Technical and consumer information'' section of this manual.) Adjust the gap as required. CAUTION Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the spark plugs. 8-18 Do-it-yourself

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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
remove the spark plugs. An incorrect
socket can damage the spark plugs.
GA16DE Engine
1. Remove brackets as necessary to give
access to the high tension cables and
spark plugs.
2. Disconnect the spark plug cables from
the spark plugs.
When
disconnecting,
always
hold
the
boots, not the cables. Mark all cables to
identify their original locations.
3. Remove the spark plugs with a spark
plug socket.
The spark plug socket has a rubber seal
that holds the spark plug so it does not
fall when it is pulled out. Make sure each
spark plug is snugly fitted into the spark
plug socket.
4. On conventional spark plugs, check the
gap
on
each
new
spark
plug
with
a
feeler gauge.
Use only the specified
spark plugs.
(The spark plug gap is
shown in the ‘‘Technical and consumer
information’’ section of this manual.) Ad-
just the gap as required.
DI1229M
DI1017M
SPARK PLUG REPLACEMENT
8-18
Do-it-yourself