I have a 4.3 in my chevy blazer and need to see where my o2 sensors are so i can replace the right ones. I have my admissions test that shows sensor1(2)sensor2 and sensor1(2) sensor 3 which ones is the right one that i need to change so i can just past my test.
o2 sensors on 1996 Chevrolet Blazer
by grease monkey in Littleton, NH on June 12, 2010
ANSWER by mastertech6371 on June 12, 2010
the drivers side is bank 1. the passenger side is bank 2. there is no bank 3. Roy
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