It is never pleasing to discover a sound you don’t know about, and which comes from your car. Thus, what if you detect an exhaust noise that persists on your Chevrolet Impala? It is highly possible that this is a minimal problem, however, before being sure, it is better to execute some verifications. Our team has produced this to help you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Chevrolet Impala and second, if you have a metallic rattling noise on your Chevrolet Impala.
Muffled exhaust noise Chevrolet Impala
Exhaust pipe with holes Chevrolet Impala
Having a muffled sound from its exhaust is not insignificant and can end in over-consumption, or a malfunction of the engine, which could after a while become dirty, for example. If you have an exhaust noise on your Chevrolet Impala, it is plausible that it is due to a crack in the exhaust pipe, this is the most usual explanation. In order to confirm this, locate somebody under the running motor vehicle and accelerate to help them locate the source of the hole. Once determined, if it is not too large you can cold seal it with specific metallic mastic type legs. Otherwise, the section will have to be replaced.
Element dislocated exhaust pipe Chevrolet Impala
The other possibility of being subjected to a muffled exhaust noise on Chevrolet Impala is to have a part of the exhaust system that has dislocated due to vibrations for example. Indeed some junctions of the different parts of the pot can loosen over time and generate an exhaust gas leak in places not intended for this purpose. These fumes will then make a loud noise. Same technique as above, we go under the Chevrolet Impala to discern the problem area, and tighten or swap the bolts. If you hear a muffled sound but after checking it doesn’t seem to come from the pot itself, think about taking a look at this document which gives answers gives solutions about rear end noises on Chevrolet Impala.
Metal rattling exhaust sound Chevrolet Impala
Damaged exhaust muffler noise Chevrolet Impala
If, alternatively, you are subject to an exhaust sound that is more of a metallic type of, it is plausible that one or more parts of your exhaust may be damaged. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the cause of this noise. To be sure, go under your Chevrolet Impala, cold, and tap each of the previously stated parts with a hammer to discern the origin of the noise. You should move things between things in the problematic part, if they are baffles, you can try to push the section a little bit to try to block them and thus limit their movements. If it is a dead catalyst, it will be necessary to consider replacing it, as well as the silencer. In this case, to stop the exhaust noise on your Chevrolet Impala, you will either have to find a used one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Chevrolet Impala : Silentblock, loose pot
Finally, a metallic exhaust noise on your Chevrolet Impala may be in connection with a poor attachment of your exhaust to your vehicle. Indeed, after some time, vibrations, the pot fasteners on the vehicle chassis can come off. In this case, you need to verify, when cold, that the pot holds well, to try to get it to move in different directions and watch how it responds. Backwards there should be some play and be able to move but not too much. The closer you get to the engine unit, the more fixed it should be. Visually verify the fasteners for which you have doubts. Finally, it is possible that a silentbloc may have died . In this case it will have to be replaced.
