2: 1 (Bank 1 Sensor 1) Upstream of the Catalytic Converter on the rear Exhaust Manifold & 1 (Bank 1 Sensor 2) Downstream of the Catalytic Converter on the Exhaust Pipe.....
A 2003 Chevrolet Impala typically has four oxygen sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors. The upstream sensors monitor the air-fuel mixture, while the downstream sensors help check the efficiency of the catalytic converter.
It has 4 of them.
A little more than 16 gallons.
The impala is a 5 seater.
There are 4. Two upstream (bank1) two downstream (bank2).
The 2003 Chevrolet Impala has 12 valves.
The 2003 Chevrolet Impala Sedan gets 17 miles per gallon in the city, and 27 miles per gallon on the highway. The gas tank holds 17 gallons.
What year, what size engine? 2004-2008 Chevy impala
Two,one in front of the catalytic converter & one behind it.
The 2007 Chevy impala takes up 5 quarts of oil.
Yes, it has many sensors.
It will depend on the engine size. All will have 1 before the catalytic converter and 1 after each one.