If the system is complete and in working order, the air pump driven off the engine accessory belt, pumps fresh air into those tubes you question. The fresh air pumped in helps the catalytic converters clean up emissions. You can plug them off if you want to but you may not pass an emission test.
Remove the tubes if possible and use carb cleaner and compressed air.
Tracheal tubes
yes and it states it on the tubes
No, there are some cold cathode vacuum tubes. These do not light.
There are two tubes that take blood out of the heart. These are the pulmonary artery and the aorta.
Those little plastic tubes are the vacuum lines for the front axle shift motor.
With the help of a belt driven air pump on the front of the engine, fresh air is pumped into the catalytic converter via the small tubes. The fresh air helps the catalytic converter burn gases in the exhaust and clean up the emissions.
pull all the motor mounts off and disconnect all the pipes and tubes and wires
they are usually numbered by tubes in the motor such as if a Toyota has 4 cylinders they will be tubed in the motor
Remove the tubes if possible and use carb cleaner and compressed air.
They hold everything together, the fins, the motor and the nose.
Gosh, I hope you mean O2 sensor, and if you do they are located on the exhaust tubes, one before the catalytic converter, and one right after it.
Under the valve cover there are seals on top of the plug tubes, you will need to replace the valve cover gasket and plug tube seals.
no. the exhaust manifold is just the tubes coming off block or heads. the catalytic converter should be a separate piece that connects to the exhaust manifold that burns the unburned fuel to keep it from releasing those fumes into the air.
Lower left near the front side of the block, it is on the inlet side of the water pump. You'll see 2 tubes one thicker other thinner, the housing mounted to the block by 2 screws. Follow the lower radiator hose and you'll find it.
No vacuum tubes on the Dakota. It uses electric servos.
built up heat coming out engine breather tubes on the motor!