Spark Plug: Service and Repair
REMOVAL AND INSTALLATIONCAUTION: All spark plugs installed on an engine, must be of the same heat range.
Spark plug:
CHAMPION: RC10YC4 (Alternate)
NGK: BKR6E-11
NIPPONDENSO: K20PR-U11
#1 SPARK PLUG
1. Disconnect battery ground cable.
2. Remove air intake duct and resonator chamber. (California SPEC. vehicle)
1. Remove bolt which installs air intake duct (A) on the front side of body.
2. Remove bolt which installs air intake duct (B) on body.
3. Remove air intake duct (A) and (B) as a unit.
4. Remove resonator chamber.
3. Remove air cleaner upper case and air cleaner element. (Except California SPEC. vehicle)
1. Disconnect mass air flow sensor connector.
2. Remove two clips securing air cleaner upper cover.
3. Loosen the clamp screw and separate air cleaner upper cover from air intake duct.
4. Remove air cleaner element.
4. Remove #1 spark plug cord by pulling boot, not cord itself.
5. Remove spark plug with the spark plug socket.
6. Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6 ± 2.9 N.m (2.10 ± 0.30 Kg.m, 15.19 ± 2.14 ft.lb)
#2 SPARK PLUG
1. Disconnect battery ground cable.
2. Remove #2 spark plug cord by pulling boot, not cord itself.
3. Remove spark plug with the spark plug socket.
4. Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6 ± 2.9 N.m (2.10 ± 0.30 Kg.m, 15.19 ± 2.14 ft.lb)
#3 SPARK PLUG
1. Disconnect battery ground cable.
2. Remove air intake duct and air chamber. (California SPEC. vehicle)
1. Remove bolt.which installs air intake duct (A) on the front side of body.
2. Remove bolt which installs air intake duct (B) on body.
3. Remove air intake duct (A) and (B) as a unit.
4. Remove resonator chamber.
3. Remove air cleaner upper case and air cleaner element. (Except California SPEC. vehicle)
1. Disconnect mass air flow sensor connector.
2. Remove two clips securing air cleaner upper cover.
3. Loosen the clamp screw and separate air cleaner upper cover from air intake duct.
4. Remove air cleaner element.
4. Remove #3 spark plug cord by pulling boot, not cord itself.
5. Remove spark plug with the spark plug socket.
6. Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6 ± 2.9 N.m (2.10 ± 0.30 kg.m, 15.19 ± 2.14 ft.lb)
#4 SPARK PLUG
1. Disconnect battery ground cable.
2. Disconnect washer motor connector.
3. Disconnect rear window glass washer hose from washer motor, then plug connection with a suitable cap.
4. Remove the two bolts which hold the washer tank, then take the tank away from the working area.
5. Remove #4 spark plug cord by pulling boot, not cord itself.
6. Remove spark plug with the spark plug socket.
7. Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6 ± 2.9 N.m (2.10 ± 0.30 kg.m, 15.19 ± 2.14 ft.lb)
CAUTION: The above torque should be only applied to new spark plugs without oil on their threads. In case their threads are lubricated, the torque should be reduced by approximately 1/3 of the specified torque in order to avoid over-stressing.