Mechanics

OXYGEN SENSOR

2004 Kia Optima

Engine Performance problem
2004 Kia Optima 6 cyl Front Wheel Drive Automatic 185000 miles

HOW DO I REPLACE THE LOER AND UPPER OXYGEN SENSORS
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JVILLANELLI
April 5, 2010.



Once, you've located the oxygen sensor to be replaced, spray the threaded area with a penetrating lubricant. While the lubricant loosens the connection, carefully disconnect the wiring harness and place it aside.
Using a flared or box-end wrench, loosen and remove the old sensor.
New oxygen sensors usually come with a special anti-seize compound applied to the threads. Simply position the new sensors in the threaded hole and tighten in place. There's no need to over-tighten the sensor-just past hand tight should be fine. Once the plug is in place, re-attach the wiring harness.

Bluelightnin6
Apr 30, 2010.


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