1. Oil or grease residue. When a new muffler is installed, it is important to make sure that all of the oil and grease residue from the old muffler is removed. If this residue is not removed, it can burn off and cause smoke.
2. Excess sealant. When installing a new muffler, it is also important to make sure that the sealant is applied correctly. If too much sealant is applied, it can cause smoke.
3. Defective muffler. In some cases, a muffler may smoke because it is defective. If you suspect that your muffler is defective, you should take it back to the shop where it was installed to have it checked.
Here are some tips to help prevent your muffler from smoking after a new installation:
1. Make sure that all of the oil and grease residue from the old muffler is removed. You can do this by wiping down the muffler with a clean cloth and degreaser.
2. Apply the sealant correctly. Follow the manufacturer's instructions for applying the sealant.
3. Test the muffler before you drive your car. Start your car and let it run for a few minutes. If you see smoke coming from the muffler, take it back to the shop where it was installed to have it checked.
