Exhaust rattle metalic rattle over bumps and exhaust sounds louder

IF this is occurring on light acceleration or when the motor is under load then it may be detonation in the combustion chambers . IT is from air/fuel ratio incorrect and ignition timing incorrect. Run the fault codes to check for codes associated with the air flow and the exhaust as the ECM is having difficulty adjusting the settings for the engine.

Check cv joints. check wheel bearings.. Check wheel nuts are tight and are tightening up on the center part of the wheel

Most likely are the sway bar end links have gone bad, these fail quit e often.

Spare wheel?? Jack kit?? Exhaust heat shield?? Brake pads rattling in calipers?? Try pressing the brake whilst goin over the bump, then handbrake (slowly)

quick fix and cheap drain a quart of oil out of the motor then get a quart of LUCUS oil conditioner add to the motor oil. about (12-15 dollars) it worked to quite the little 2.0 that has always had a little lifter/valve noise,

There are a number of things which can do that. If someone did not properly fasten the aircleaner down it will rattle. You can get a rattle out of the shielding for your Catalytic converters and sometimes gravel will get caught in the shielding and rattle with every bounce.

There is a good possibility the rattle is your front brake pads which is why they make a compound to glue the pad to the caliper. To check this, just lightly hit the brakes enough to make the calipers work and if the noise is reduced or stops, then that is your problem. Do this when going over the bumps and potholes.

Another possibility is the joint from the exhaust header to the Catalytic pipe. There is a round metallic gasket usually called a "donut" which can work loose with engine vibration. This will sometimes chirp when you go to Reverse and back to a forward gear.

I hope one of these will solve your problem.

The metal shielding around your catalytic converter could be rattling or the rubber donut that holds the rear tailpipe could be bad. When your car is cold shake your tailpipe and see if you can reproduce the noise. If you can your tailpipe donut is likely bad. Three dollars at any auto parts store. If it does rattle when you shake your tailpipe then the heat shield for your convert could be loose. You need to tighten it up another piece of metal between it and the converter to keep it from rattling. If you hear the rattle when you go over bumps too then your exhuast is probably, loose. Crawl under there and stake shaking things, I am sure you'll find the problem

The heat shields that are positioned between the exhaust pipe and floorboard or between the exhaust pipe and sensitive electrical components are made of very cheap, thin, tin-like metal. When they rust on one side, one of the tabs comes loose and the whole shield will vibrate especially when accelerating. Since you are getting the noise when you hit a bump, you might check the area where you stow the spare tire (loose tools may be vibrating against the metal). Also the plastic protective pieces behind front bumper sometimes tear and will "flap' against the car and sound like a metallic vibration when you hit a bump especially if you were stuck in snow recently. Look for loose plastic pieces.

Check your exhaust and rear suspension for something loose or broken. Problem could be the exhaust, a hanger or cracked pipe. In the suspension it could be shocks, worn bushings, track arms etc. When a problem like this happens you have to get under the car and grab and try to move things checking for loosness. In general try to see what is loose enough that a bump causes it to rattle or bang. Other than inspecting the rear area there is no short cut that can be taken to solve the problem. You don't want to just start replacing parts hoping to fix the problem, that can be expxnsive and unnecessary. Good Luck!!!

Sounds like you need a new exhaust.