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4.0L
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4.6L
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5.7L (Camaro & Firebird)
5.7L (Corvette)
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ENGINE SENSORS & SWITCHES
OXYGEN SENSORS
NOTE:
Oxygen sensor is mounted in exhaust pipe, below exhaust
manifold and is equipped with a permanent pigtail which must
remain intact when removing sensor.
Removal (1.3L, 1.8L, 1.9L, 2.2L, 2.4L, 3.0L, 3.1L & 3.4L -
Sensor 1)
1) Ensure oxygen sensor is free of contaminants. DO NOT use
cleaning solvents of any type. Oxygen sensor may be difficult to
remove when engine temperature is less than 120
removal force may damage threads in exhaust manifold or pipe.
2) Disconnect negative battery cable. Disconnect harness
connector from oxygen sensor. Carefully remove oxygen sensor from
exhaust pipe.
Removal (1.8L - Sensor 2)
1) Ensure oxygen sensor is free of contaminants. DO NOT use
cleaning solvents of any type. Oxygen sensor may be difficult to
remove when engine temperature is less than 120
removal force may damage threads in exhaust manifold or pipe.
2) Disconnect negative battery cable. Remove front floor
console. Pull back passenger side carpet from along console floor
area. Disconnect oxygen sensor electrical connector. Remove oxygen
sensor wiring from under floor heat duct.
3) Raise and support vehicle. Remove oxygen sensor wiring
from body plug and floor pan. Carefully remove oxygen sensor from
exhaust pipe.
Removal (3.5L - Sensor 2)
1) Ensure oxygen sensor is free of contaminants. DO NOT use
cleaning solvents of any type. Oxygen sensor may be difficult to
remove when engine temperature is less than 120
removal force may damage threads in exhaust manifold or pipe.
2) Raise and support vehicle. Disconnect negative battery
cable. Remove oxygen sensor wiring harness heat shield. Disconnect
oxygen sensor electrical connector. Carefully remove oxygen sensor
from exhaust pipe.
Removal (3.8L - Sensor 1)
1) Ensure oxygen sensor is free of contaminants. DO NOT use
cleaning solvents of any type. Oxygen sensor may be difficult to
remove when engine temperature is less than 120
removal force may damage threads in exhaust manifold or pipe.
2) Remove fuel injector sight shield. Remove retaining clip.
Disconnect oxygen sensor electrical connector. Carefully remove oxygen
sensor from exhaust pipe.
Removal (3.8L - Sensor 2)
1) Ensure oxygen sensor is free of contaminants. DO NOT use
Compartment, Inside Air Cleaner Assembly
Compartment, In Air Cleaner Assembly
In Left Front Corner Of Engine
Compartment, Under Air Cleaner
...................
Compartment, Rear Of Wheelhouse
Behind Right Front Fender, Under Battery
On Left Side Of Engine
On Right Side Of Engine
¢
¢
F (48
C). Excessive
¢
¢
F (48
C). Excessive
¢
¢
F (48
C). Excessive
¢
¢
F (48
C). Excessive
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