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Oxygen Sensor 2000" Silverado 5.3 liter

Discussion in 'General Chevy & GM Tech Questions' started by Wendell Gosdin, Jan 23, 2014.

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  1. Wendell Gosdin

    Wendell Gosdin New Member

    does anyone have a link that will show the location of these 2 sensors ? thanks, Wendell
  2. 99'HEARTBEAT

    99'HEARTBEAT Moderator Staff Member Platinum Contributor 1000 Posts 100 Posts

    Welcome to the Site Wendell, Number #4 and Number #5 are the 02 Sensor's, you have to 2-Sensor's before the Cats, and 2-Sensor's after the Cats....on your Exhaust System.

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