I think there is 4. 2 of them will be close to the exhaust manifolds and the other 2 will be further back in the exhaust pipes. There will not be any after the muffler.
The 2 that are close to the engine are called up stream 02 sensors, The other 2 are called the down stream 02 sensors.
That year has 2 oxygen sensors.
It has 1
That year used ONLY 2 sensors and there up close to the engine in the exhaust system/pipes.
There are 4 of them. 2 Up streams and 2 down streams.
It has 4 of them.
How many oxygen sensors are there for a 2001 Chevy Tahoe 5.3L
how many oxygen cencors does the 1994 Chevy blazer have
It has 2 of them.
It has 2 and both of them are underneith the intake manifold.
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 4 and there all screwed into the exhaust system.
4