Question about 2003 Chevrolet TrailBlazer
I OWN 03 EXT TRAILBLAZER AND THE SERVICE ENGINE IS ON. I HAD IT RESTED ON A SIMPLE HAND SCANNER AND IT SAID THE O2 SENSOR OR CAT IS BAD. I DO NOT SMELL ANY ROTTEN EGG SMELLS SO COULD THE PROBLEM BE THE SENSOR. IS THIS SENSOR AN EXTERIOR OR AN INTERNAL ONE?
The sensor will be external and cats don't always smell like rotten eggs when they go. Also check as you will probably have a post converter sensor as well that sends a signal back to the main computer.
Posted on Oct 09, 2008
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Posted on Jan 02, 2017
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