Weird noise

[dpost01]

You know the sound you hear echoing back at you as you drive down the road close to a guard-rail or a hill? Most times you cannot hear it yourself since you are inside of the truck but every so often you get the echo how what your truck sounds like. This is what I am hearing and I don't like it.

Let me explain the best I can. While driving close to terrain or an object to echo sounds back to me, I hear almost a rattling of sorts, but pretty loud. Once I slow to below 15mph, it goes away (I live on a one-way road in a hollow so sound echos on the hills) I do not believe it is engine related since there is no rattling while the engine is running and I am parked so this leave me with just moving parts while driving.

I just had to get into my transmission to repair the solenoid pack and I went ahead and replaced the filters at the same time along with a new transmission pan with a drain plug in it.

Right now, I am almost at the point of just shotgunning it and replacing the axles and bearings. Or maybe it is the u-joints?

Anyone experience weird rattling like noises? Solution?

BTW, I have a 2011 Ram 1500 SLT BigHorn 4x4 106K miles. Bought it new.

 

[MADDOG]

Check the heat shields. After a 106K miles I would not be surprised if one or two of them are loose.

 

[Fitzreefer]

Also, brake rotors shields are good for making noise. If they are bent or warped and touching the rotor, the sound you could be hearing is the rotor scraping on the brake shield.

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[dpost01]

Check the heat shields. After a 106K miles I would not be surprised if one or two of them are loose.

Heat shield around the cat or is there more under there?

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[dpost01]

Also, brake rotors shields are good for making noise. If they are bent or warped and touching the rotor, the sound you could be hearing is the rotor scraping on the brake shield.

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I just changed rotors and pads and at least one of the shields was rusted to hell and had rust holes in it. The wheel bearing has to come off to replace this if I remember. I might as well replace the bearing since it is off.

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[Fitzreefer]

I just changed rotors and pads and at least one of the shields was rusted to hell and had rust holes in it. The wheel bearing has to come off to replace this if I remember. I might as well replace the bearing since it is off.

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I would check to see if the shields look to be touching the rotors first and bend them away. See if the noise goes away. At least it will give some sanity to narrow that out of the equation. As others said, loose exhaust heat shield is another, possible muffler or cat conv internals.

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[MADDOG]

Heat shield around the cat or is there more under there?

You should have two heat shields over the cats (one per side) but they aren't connected to the cats, they are connected to the floor pan.

You may have one over the Y-pipe and one over the muffler as well.

 

[dpost01]

You should have two heat shields over the cats (one per side) but they aren't connected to the cats, they are connected to the floor pan.

You may have one over the Y-pipe and one over the muffler as well.

Ok. I will check this out the next time I have a nice day. Just bolts or are they welded to the floor pan?

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[MADDOG]

Usually rivets or screws. I've seen both.