Is your vehicle's exhaust pipe covered in patches and is begging to be replaced? Keep in mind that a faulty pipe can lead to gas leaks, poor fuel efficiency, and decreased engine performance. Before a patched-up pipe leads to more car troubles, replace it as soon as possible. Here's what you should do:
Tools you'll need:
- Jack stands and jack
- Metric wrenches
- Penetrating oil
- Exhaust clamps and hanger
- Ball peen hammer
- Cold chisel
Step 1: Jack up the car on level ground.
Prep your vehicle by jacking it up with a jack and jack stands. For your own safety, never work under the vehicle with just the jack or jack stands.
Step 2: Identify which exhaust pipe has to be replaced.
Once the engine has cooled down, get under your vehicle and carefully examine the exhaust assembly. Keep in mind that in many vehicles, the exhaust pipes are divided into two sections. The first part is between the muffler and the catalytic converter. The second part is between the exit point and the muffler.
Step 3: Remove the busted pipe.
Once you've identified the broken pipe, remove it by twisting it and pulling it off carefully from the muffler. When removing the pipe, you also need to uninstall the exhaust hangers. Keep on twisting and pulling until the faulty exhaust pipe is removed.
Step 4: Put the new pipe in place.
Twist the new pipe in place and reattach it to the hangers. But don't tighten it up yet. To secure the pipe in place, attach the new exhaust clamps onto the end of the pipe. Weave or twist the pipe over the muffler until it sits snugly into the assembly.
Step 5: Tighten the clamps, nuts, and hangers.
After securely attaching the pipe, bolt it in place by tightening the clamps, the nuts, and the hangers. Try to move the new pipe around to check if all the connections are properly aligned and attached.
To test the new pipe, lower the vehicle and start the engine. Watch out for leaks or unusual sounds coming from the assembly. If there are no leaks or weird sounds coming from the exhaust system, it means the installation process is a success.
- If you don't have enough working space at your own garage, you can look for rental spaces designed for car repairs. These places are usually equipped with mechanical lifts, making it easier for you to get under your vehicle.
- When dealing with an exhaust pipe that won't break free from the assembly, whack it gently with a ball peen hammer and a cold chisel until it loosens up. Just be careful not to damage the muffler and nearby parts.
- Because an exhaust pipe is heavy and bulky, you might need assistance when twisting or weaving it in place.
- To make bolt removal easy, apply some penetrating oil on them first.
- Protect your eyes from toxic exhaust fumes and debris by putting on a pair of safety glasses.