Ensure the vehicle is located on a flat surface and turned off. Step 3: Raise the car. Safely raise the vehicle off the ground with the floor jack and safety jack stands. Position all four jack points under the vehicle.
Step 4: Spray the hardware. Generously spray all hardware nuts and bolts with PB Blaster and allow it to soak in for 5 or so minutes. Step 5: Remove the muffler. Begin at the rear of the vehicle and remove the muffler first using the appropriate size 6 pointed socket and a ratchet. There should be two bolts to remove from the muffler. Once the hardware is removed, slide the muffler off the rubber hangers and remove it from the car completely.
Set it aside. If your vehicle is equipped with two mufflers, you will repeat the process for the second muffler. Tip : Be sure to not use pointed sockets at this point. They may cause the nuts and bolts to round off, making them very difficult to remove. Tip : spraying WD40 on the rubber hangers will assist in sliding off and on the components of the exhaust system.
Step 6: Detach from the catalytic converter. Remove the bolted, middle part of the exhaust from the catalytic converter. Step 7: Remove the rubber hangers. Remove the old rubber hangers from the vehicle and replace them with the new ones. Step 8: Put on the new rubber hangers. Slip the new middle piping on to the new rubber hangers. Step Put on the new gasket. Install a new gasket between the catalytic converter and the new exhaust.
Use the new hardware to fasten this flange together. Tighten by hand. Step Fasten the flange. Locate the flange that adjoins the middle piping to the muffler. Install a new gasket and fasten the flange together with the new hardware by hand.
Step Tighten the bolts. Fine tune the placement of the exhaust system. Tighten the bolts down at each flange and verify that the exhaust is hanging freely on the rubber hangers.
Be sure that it is not pressed against the vehicle's frame, gas tank, or the heat shields. Step Check your work. While the vehicle is still in the air, start it up and listen to the new exhaust. Check each flange for any sign of exhaust gases escaping. You should also be able to hear a leak if there is one.
Step Return the car to the ground. After you have verified that there are no leaks, turn off the vehicle. Use a floor jack to remove the safety jack stands and lower the car back to the ground.
Whether you replaced your exhaust due to damage or decided to upgrade it for performance, remember to always take caution when driving through driveways, speed bumps, and dips.
The exhaust is exposed underneath the car and can be damaged if pulling into a driveway too quickly. If you live in areas that experience snow, be sure to have your undercarriage washed weekly during those winter months to prevent your exhaust and other components under the vehicle exposed to the elements from turning to rust.
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Service Location. Part 1 of 2: How the exhaust system works There are five major components that make up the entire exhaust system. Tip : This article will talk about changing the exhaust system from the rear of the catalytic converter. Part 2 of 2: Installing the exhaust system Materials Required 6 pointed sockets - 10mm through 19mm. Floor Jack Gaskets - new and the required number for vehicle Gloves Hardware - new bolts and nuts to reassemble new exhaust Penetrating Oil Best to use is PB Blaster Ratchet Replacement bolt-on exhaust system Rubber exhaust hangers - new.
Safety Glasses Safety Jack Stands x 4 Tip : Purchasing a replacement exhaust system kit will usually include the new hardware, gaskets and hangers.
Tip : spraying WD40 on the rubber hangers will assist in sliding off and on the components of the exhaust system Step 6: Detach from the catalytic converter. The flange external lip connected to the catalytic converter end may have two or three bolts that are attached and will need to be removed.
Once the hardware is removed, slide the piping off the rubber hangers and set it aside. Step 9: Slip the new muffler on to the new rubber hangers. Tip : With the exhaust hanging and the hardware loose, you may have to twist, shake, or rotate the pipes into the desired placement. Be patient with this.
Warning : Feel for, but do not touch, for exhaust air escaping each flange. Be careful doing this as the exhaust gas temperature will get hotter the longer the vehicle is on. Take the car for a test drive. Home Check Exhaust System. Position the new exhaust system so it lines up with the downpipe leading to your engine and secure it. Once you check the system for leaks, you can start driving your vehicle again! Tip: If the exhaust pipe bends over your rear axle, it may be difficult to pull out in 1 piece.
Instead, you can cut through the pipe at the top of the bend with a hacksaw or reciprocating saw with a metal-cutting blade. Remove the pieces of the exhaust system separately. Tip: If your exhaust system comes in multiple pieces, start with the section of pipe that attaches to the downpipe.
Continue installing the pieces of your exhaust system as you work back toward the rear of your vehicle. An exhaust system connects to your engine and guides the emissions through a pipe under your car. This system helps remove toxic chemicals and reduces noise. If you need to replace your system, you can install a new one from the catalytic converter to the tailpipe with a few tools. Then, starting where the exhaust pipe connects to the engine, unscrew the nuts with a ratchet.
Unhook the pipes from the rubber exhaust hangers and pull the exhaust system down. Once your old system is out, you can position the new system so it lines up with the downpipe leading to your engine. Plug the oxygen sensors back into the ports and slide the metal pins on the system into the rubber exhaust hanger to secure the pipe.
To learn how to test the new system for leaks, keep reading! Did this summary help you? Yes No. Log in Social login does not work in incognito and private browsers. Please log in with your username or email to continue. No account yet? Create an account. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy.
Cookie Settings. Learn why people trust wikiHow. Download Article Explore this Article parts. Tips and Warnings. Things You'll Need. Related Articles. Article Summary. Part 1. All rights reserved. This image may not be used by other entities without the express written consent of wikiHow, Inc. Familiarize yourself with the parts of the exhaust system. Look up diagrams for the make and model of your vehicle so you can locate the exhaust system.
The exhaust system starts with the manifold, which is the section of 4—8 pipes that connect to your engine guide the fumes underneath your vehicle through a metal downpipe. Your exhaust system may have more than 1 catalytic converter. The oxygen sensors are electronic ports that plug into the exhaust system before and after the catalytic converters to check if your engine is burning oxygen efficiently. The resonator is a slightly wider section of your exhaust pipe that helps reduce the amount of noise when you run your engine at certain RPMs.
Not every exhaust system will have a resonator. The muffler is the large metal box near the rear of your vehicle that helps reduce the amount of noise your exhaust makes. The tailpipe is the small section of tubing that connects to the back of the muffler and allows the fumes to escape into the air. Leave the vehicle alone for about 1 hour until you can comfortably handle the exhaust pipes.
You can try spraying the exhaust system with lukewarm water to help cool it down faster. Raise your vehicle so you can work underneath it using a jack. Place the jack so the arm that raises up underneath the frame at the front or back of the vehicle. Pull the handle of the jack down to lift the vehicle off of the ground high enough so you can get underneath it.
You can also drive your vehicle onto ramps to lift it off of the ground. Place jack stands near each tire to keep the vehicle from moving around. Slowly lower your jack so the body of your vehicle sits on the jack stands. Part 2. Disconnect the oxygen sensors from underneath your vehicle. The oxygen sensors are small metal pieces attached to wires that connect into the sides of the exhaust pipe.
Pull the oxygen sensor straight out from the pipe before unplugging it from the wires connecting to your vehicle. Vehicles only have oxygen sensors if they have a catalytic converter. If your vehicle is from or prior, then the exhaust may not have oxygen sensors. Lie on a rolling creeper trolley to move around under your vehicle more easily. You can buy a creeper trolley from an automotive supply store.
Spray the nuts along the exhaust pipe with penetrating fluid. Penetrating fluid works between the bolt and nut threadings to add lubrication and make it easier to unscrew the system. Point the spout of the penetrating fluid directly at the nuts connecting the exhaust pipe to the downpipe attached to your engine. Make sure to coat all of the threadings evenly to make the job easier. If your exhaust system is made up of multiple pieces, then look for bolts where the pieces connect to one another.
Spray those with your penetrating fluid as well so you can remove each of the pieces separately. Unscrew the nuts with a ratchet. Start where your exhaust pipe connects to the engine at the front of your vehicle. Choose a ratchet bit that matches the size of the nuts holding the exhaust system to your vehicle.
Apply firm pressure as you rotate the nut since it may be stuck or locked in tightly. Continue unscrewing the rest of the nuts if the pieces of your exhaust system are held together by other bolts or clamps.
Unhook the pipes from the rubber exhaust hangers. Support the exhaust pipe with your nondominant hand as you slide the metal pin out from the rubber. Slowly and carefully take the other pins off so the exhaust system comes loose from the body of your vehicle.
Pull the exhaust system down from your vehicle. Slowly take the exhaust system from the catalytic converter to the tailpipe and lower it to the ground. Do not drive your vehicle while you have the exhaust system removed since it may be illegal in your area and you will release harmful fumes. Part 3.
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