There are two. One on the exhaust manifold and one just after the catalytic converter.
If in doubt replace both.
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How many oxygen sensors are there for a 2001 Chevy Tahoe 5.3L
It has 4 and there all screwed into the exhaust system. There will not be any after the muffler. There about 3 to 4 inches long with an electric wire hooked to them.
how many oxygen cencors does the 1994 Chevy blazer have
There are approximately 2 oxygen sensors on a 2005 Chevrolet Astro van. The oxygen sensors can be purchased at stores such as NAPA.
It has 2 of them.
That year has 2 oxygen sensors.
It has 1
4
they have 4 oxigen sensors,, 2 by each bank(before & after catalyts)
That engine has 2 of them.
It should have 4 of them.
A 1998 Chevy S10 Blazer has a total of two oxygen sensors. One is used for the upstream and one for the downstream.