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Home >> GMC >> 1998 >> Forward Control 7.4 B >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls - Remove/Install/Overhaul - 4.3L) >> Fuel System >> Oxygen Sensor >> Installation
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Oxygen Sensor: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Whenever oxygen sensor is removed, coat threads with anti-seize compound before reinstalling. New oxygen sensors already have this compound applied to threads.
  2. Install oxygen sensor in exhaust pipe and tighten sensor to 30 ft. lbs. (41 N.m). Reconnect harness connector to oxygen sensor. Reconnect negative battery cable.
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