Auto Repairs how to Change a Muffler
While the prospect of performing auto repairs is not for everyone, how to change a muffler on a car is a fairly simple task to accomplish if the individual does not mind getting a little dirty in order to save money. In most cases to change a muffler usually takes in the one to two hours range after the parts have been acquired, and a car owner can easily save between $50 to $125 over the price of having a car muffler professionally installed. It is very important when you change a muffler to take every conceivable safety precaution to ensure accidents are avoided. Always incorporate the use of safety goggles and work gloves, and take special precautions to ensure that the vehicle is raised safely and securely before getting beneath it.The first step to change a muffler after jacking a car is to remove the old muffler and to inspect the connecting joints, hangers and clamps for wear or damage. This step can be made much easier when you change a muffler by spraying old nuts and bolts with a penetrating oil and letting it set for 10 minutes or so .First remove the old muffler clamps and then disconnect the hangers that may be attached to the muffler. It should now be a simple task to slide the muffler back away from the exhaust pipe to free it from the connection. After you remove the old muffler it is a good idea to take a scraper and a piece of sandpaper and clean the connecting pipes so when the new muffler is attached it will form a tight seal.The next measure to change a muffler is to purchase new hangers and install them in the proper location under the car. You can now connect the muffler to the hangers in a loose fashion in order to position it correctly. Replace the muffler clamps and any necessary joint connecting pieces, and go back and tighten all of the muffler components. Lower the car from the jack or work ramps and start the car's engine while looking from a side view to check for any exhaust leaks. As long as the muffler has been changed so that the connecting pieces are secure and snug, there should be no leaks present. The last step to change a muffler is to take the vehicle for a test drive to make certain there are no squeaks or excessive swaying, and if all is good the job is completed.
