your catalytic converter is probably stopped up
It is inside the torque converter.
No. The torque converter does not have a drain.
one
On a 2003 Jeep Grand Cherokee Laredo 4x4 with a 4.0-liter engine, there are typically four O2 sensors. The upstream O2 sensors are located before the catalytic converter, with one positioned on each exhaust manifold. The downstream O2 sensors are located after the catalytic converter, also with one on each side. These sensors monitor the exhaust gases to help optimize fuel efficiency and emissions.
Performance may be okay but you will probably fail an emissions test.
You should have 2 O2 Sensors, one in front of the Catalytic converter, and on after. You shuold see both by just looking under the Jeep
The engine computer.
Problem?
They are in the exhaust pipe on either sides of the catalytic converter or converters.
I have a '96 jeep grand Cherokee and mine was recalled for a faulty O2 sensor and catalytic convertor. That might be the problem, because after getting those fixed, i get 15 mpg instead of 13.
Round item in the exhaust pipe, just behind the engine.Round item in the exhaust pipe, just behind the engine.