The exhaust system of a car is supposed to remove these emissions and clean them as much as possible before releasing them in the atmosphere.
When the car's exhaust system does not do this job then it has to be replaced.
Some of the components of the exhaust system can be simply replaced with a wrench but others need welding equipment.
Clamps can be used to cinch down joints between components.
Working on the exhaust system requires getting it up on safety stands, blocking the wheels and crawling below.
Manifold Life of an Exhaust System The exhaust system collects exhaust gasses as they leave the cylinders of the engine and then those gasses are piped to the catalytic converter through the exhaust pipe.
Cars with all cylinders have one exhaust manifold.
The exhaust system can become cracked or warped from excessive engine heat.
If the exhaust is escaping from places it didn't before then the exhaust manifold may need to be replaced.
Mostly the gasket seals between the manifold and the engine block have to be replaced when repairing an exhaust manifold.
For repairing an exhaust manifold, follow this guide: First, locate the exhaust manifold on the car, find the exhaust muffler and pipe under the car and trace it where it attaches to the exhaust manifold.
Remove the bolts that connect the exhaust pipes to the exhaust manifold output.
A long half inch socket wrench driver is needed to loosen the bolts.
After removing them, the gaskets should be checked and replace it if necessary.
Remove the bolts that attach the manifold to the engine block.
Remove the exhaust manifold and gasket from the engine carefully.
After that, reinstall the exhaust pipe to the manifold output, replacing the gasket.
For replacing an exhaust pipe, follow this guide: First, loosen and remove the bolts holding the exhaust pipe to the exhaust manifold.
Then loosen and remove hangers holding the exhaust pipe to the under the car making sure it will not fall.
Now replace the exhaust pipes and reconnect to the system.
If you are replacing the muffler, catalytic converter or resonator, then do it while replacing the pipes.
It is a job which deserves a treat when completed.
Keeping the Environment Clean of Auto Emissions A car normally has 1.
625 scads of emissions-control devices hidden in its nooks and crannies.
The exhaust gas recirculation system returns exhaust gases to the engine for re-burning.
The evaporative emissions control system recycles fuel vapors.
The positive crankcase ventilation system re-circulates gases from the oil pan to the intake manifold.
These systems need to be replaced when they go wrong.
The car service manual or an aftermarket manual gives specific instructions test and replace these components.