There are two. One near the top of the exhaust manifold and one on the exhaust pipe trailing from the manifold.
how many o2 sensors on a ford e350 van 2003
2
The 2.5 has 2 O2 sensors (both on top of the engine) and the 3.5 has 4 O2 sensors (two on top, and two under the car).
It has 4 of them.
There are two oxygen sensors in a 2003 Sonoma V6 with a 4.3 liter. Prices for the sensors start at $69.95.
yes
My 2003 model has 4 sensors. Two are before the catalytic converters and two more after the cat converters..
Exhaust pipes
YES
There are four o2 sensors on a montero sport.
Deffinatley 2 and maybe a 3rd one
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.