It is rarely pleasant to find out a sound you don’t know about, and which will arrive from your car. Thus, what if you discover an exhaust noise that persists on your Mercury Grand Marquis? It is highly possible that this is a minimal trouble, however, before being sure, it is better to carry out some inspections. Our team has produced this to support you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Mercury Grand Marquis and second, if you have a metallic rattling noise on your Mercury Grand Marquis.exhaust-noise-mercury-grand-marquis

Muffled exhaust noise Mercury Grand Marquis

Exhaust pipe with holes Mercury Grand Marquis

Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the car engine, which could finally become dirty, for example. If you have an exhaust noise on your Mercury Grand Marquis, it is possible that it is due to a crack in the exhaust pipe, this is the most usual explanation. To be able to verify this, situate someone under the running motor automobile and accelerate to help them recognize the starting point of the hole. Once identified, if it is not too large you can cold seal it with specific metallic mastic type legs. Otherwise, the section will have to be swapped.

Element dislocated exhaust pipe Mercury Grand Marquis

The other possibility of being suffering from a muffled exhaust noise on Mercury Grand Marquis is to have a part of the exhaust device that has dislocated as a consequence of vibrations for example. In fact some junctions of the different parts of the pot can loosen with time and generate an exhaust gas leak in places not intended for this purpose. These fumes will then produce a loud noise. Same technique as above, we go under the Mercury Grand Marquis to discover the trouble area, and tighten or replace the bolts. If you hear a muffled sound but after examining it doesn’t seem to come from the pot itself, think about taking a look at this article which gives answers gives solutions about rear end noises on Mercury Grand Marquis.

Metal rattling exhaust sound Mercury Grand Marquis

Damaged exhaust muffler noise Mercury Grand Marquis

If, alternatively, you are subject to an exhaust sound that is more of a metallic sort of, it is possible that one or more parts of your exhaust may be destroyed. Indeed, it is possible that either your baffles, the catalyst or the silencer are the reason of this noise. To make sure, go under your Mercury Grand Marquis, cold, and tap each of the previously stated parts with a hammer to discover 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 swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Mercury Grand Marquis, you will either have to find a used one and do it yourself, or go to your auto technician.

Metal rattling exhaust noise Mercury Grand Marquis : Silentblock, loose pot

Finally, a metallic exhaust noise on your Mercury Grand Marquis may be in connection with a poor attachment of your exhaust to your automobile. In fact, over time, vibrations, the pot fasteners on the automobile 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 reacts. 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 swapped.