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Re: 99 s-10 blazer o2 sensor's
I show 3 - 02 sensors.
But always look and count them to be sure.
Always look in front of and behind cat.
One rear of cat and one on each side of front exhaust pipe.
Any problems with old ones or codes?
What is the mileage.
MT
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Remember proper testing gives us the answer to many problems.
MT
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