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02 sensor part # for 03 Trailblazer.
Ive read that theres new improved 02 sensors that GM is using.
Im at 126,800 miles on my 2003 Trailblazer... I have no CEL.
But between now and Dec. Im planning on changing a few parts (due to age and not failure--- preventive maintenance I guess) before I take a long trip....
Im currently getting 18-19 mpg in combined mileage.
I looked up the part # on the AC-Delco web site and came up with 213-2915.
Ive seen other post for o2 sensors for newer Trailblazers where theres a bunch of part numbers..... (maybe they can use the older part and new improved part).....
Can anyone use their Dealer parts counter computer to see what GM/dealer shows for the replacement O2 sensor?
Maybe the improved design isnt available for my model year...
Thanks.
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