Frontier XE King Cab 2WD V6-3.3L (VG33E) (2001)
VG33E Models
CAUTION:
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Always replace exhaust gaskets with new ones when reassembling.
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With engine running, check all tube connections for exhaust gas leaks, and entire system for unusual noises.
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Check to ensure that mounting brackets and mounting insulators are installed properly and free from undue stress. Improper installation could
result in excessive noise or vibration.
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Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor;
use a new one.
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Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and
approved anti-seize lubricant.
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Do not over-torque the oxygen sensor. Doing so may cause damage to the oxygen sensor, resulting in the MIL coming on.