Question about 2002 Chevrolet TrailBlazer
Posted by Anonymous on
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Posted on Jan 02, 2017
There are 3 oxygen sensors on your van. Left bank would be the front left. Try replacing it and see if that helps but remember to reset the computer. Where I work the sensor costs a little over $100.00.
Posted on Mar 10, 2009
This is probably referring to problems with your bank 1 oxygen sensor. Without the vehicle make, model and year I can't tell you where it is located. However, if you replace your front oxygen sensor that should clear up the problem. Also, if you do replace it, I always run some fuel injector cleaner through a full tank of gas at the same time. Hope this helps!
Posted on May 17, 2009
Vacuum leak on that bank due to damaged/loose connection of a vacuum hose to sensors or intake gasket on that side being the worst.
Posted on Aug 12, 2010
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