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Where is the bank 1 sensor 3 on a 1995-2001 GMC Jimmy?

Need to change bank 1 sensor 1 and 3 . Any help on locations ?

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cwimmer79, Bank 1 Sensor 3 is the post converter sensor

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3 Comments:

so driver side o2 sensor is b1s1 and

passenger side o2 sensor b1s2 finally

rear pass sensor o2 sensor b1s3

is this correct?

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@toddbailey5877 what year and engine does your Jimmy have?

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2000 4.3 l v6. 3 sensors 2 front l&r and one just before muffler

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bank 1 is driver side.

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cwimmer79 will be eternally grateful.
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