Question about 2008 Chevrolet Trailblazer
One before catalytic converter and one after threaded in the exhaust pipe
Posted on Oct 26, 2012
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Posted on Jan 02, 2017
located on the exhaust pipes before and after the catalytic converter there is a special socket with a cut away on it but not necessary to have can use wrenches=just be careful of connectors
Posted on Nov 18, 2009
Testimonial: "Outstanding and Thankyou for your help! Best regards, Al"
I have a 2002 Impala with 3.8L, and just replaced my Bank1 O2.
It is located between the firwall and the middle of the engine, straight down past the spark plugs. Maybe 12 inches from the top of the engine.
As I recall the plug for the sensor is clipped to a bracket at about spark plug level.
I recommend using the crow foot style wrench to remove and install.
Posted on Jan 07, 2011
there are 3 of them 1 is located on the exhaust before the catalytic converter ,one after or on the convertor and one on the block
Posted on Aug 02, 2012
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