That could be a leaking exhaust system. A leaking exhaust system is very dangerous! Please have it checked out ASAP.
Does exhaust system aid in transmission performance? I have a 1997 Chev Blazer.Type your answer here...
When system is leaking exhaust fumes When system is rotted and falls off vehicle
Here is a couple possibles, Engine or transmission oil leaking onto the hot exhaust. Plastic shopping bag caught onto exhaust system. Yesterdays chilli
you may have s mall or big hole in your exhaust system. have it check out.
Are you referring to a loud exhaust sound? If so, it could be (Going from the engine back to the tailpipe) a cracked or leaking exhaust manifold - a leaking exhaust pipe - a leaking catalytic converter - a leaking muffler. That covers the exhaust system. If you are talking about a noisy clattering sound in the engine, you could possibly need a valve adjustment.
If it is leaking or rotted
you must have air leaking into the exhaust system that will cause backfire when you decelerate raw gas goes into the system
Worn piston rings, bad valve seals,
No. Its part of exhaust system designed to reduce emissions.