A sticking thermostat can, or what you may have is a gasket seeping oil or coolant out onto the exhaust manifold.
How do you unplug an oxygen sensor on a 2003 Chevy Cavalier
The upstream oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mountedin the exhaust pipe after catalytic converter
on the muffler
no
It's the one after the cat. converter
After the catalytic convertor. Sensor one is before the convertor.
The O2 sensor is located on the exhaust system there might be more then one
No.
could be the oxygen sensor. that's what it was on mine.
The upstream O2 sensor is mounted in the ehxaust manifold The downstream O2 sensor is mounted in the exhaust pipe after the catalytic converter
Code 13 means you have a bad oxygen sensor
All oxygen sensors on all vehicles are on either the exhaust manifold or the upper end of the head-pipe.