Rattling piece on exhaust

[Hal_S550]

On my exhaust there is a woven mesh after the cats on the passenger side. It rattles some if I hit my fist on the exhaust pipe. I am currently chasing drone and wondering if this causes some. See the picture below. It does not appear on pictures of factory exhaust systems

video of rattle -

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[AZ18yote]

On my exhaust there is a woven mesh after the cats on the passenger side. It rattles some if I hit my fist on the exhaust pipe. I am currently chasing drone and wondering if this causes some. See the picture below. It does not appear on pictures of factory exhaust systems

video of rattle -

Drone is primarily caused by the mufflers. Changing from axle back with a no drone option will eliminate. Or just do a full drone free catback.

 

[sk47]

Hello; That woven length of pipe is made that way to be flexible. To allow for movement of the pipes when the engine moves around a bit on it's engine mounts.
Looks like the exhaust can be set to exit to the sides in front of the wheels or to the back. No idea if it is factory or aftermarket.
Thing to be determined is if the part which rattles is on the outside or inside the pipes. I have had rattles from external parts in a couple of ways. Sometimes it was a heat shield positioned to keep heat away from other components. I do not see any sort of shield in the picture.
The other can be the pipes or the hangers hitting against something. External rattles are often easy to fix.

If the rattle is inside the pipe it can be harder to fix. If it was a muffler I would think one of the baffle plate welds had come loose. Had that happen to an otherwise good muffler. The part in the picture does not look like it should have internal parts, but I guess such is possible. A very WAG is something upstream has broken lose and moved to that section. If you can release the clamps and take out the section of pipe you may be able to find out.

All that said I do doubt the rattle is the source of the drone. Especially if the exhaust is an aftermarket one. Too many times aftermarket exhausts are made to be loud and wind up with a drone. Good for racing or being loud but very annoying when driving around.
Good luck

 

[Geosh]

That part is stock. My 2019 has it also.

 

[Andy13186]

Any chance that your cats may be damaged? Any excessive exhaust smell?

 

[Hal_S550]

Any chance that your cats may be damaged? Any excessive exhaust smell?

I do have some smell of exhaust outside the car but I have always assumed thats from the Ford Performance side exhaust. I assume if the cats were damaged I would fail inspection and I would have a check engine light.

 

[sk47]

He

I do have some smell of exhaust outside the car but I have always assumed thats from the Ford Performance side exhaust. I assume if the cats were damaged I would fail inspection and I would have a check engine light.

Hello; One way the cats can be damaged is if the engine runs rich for a long time. keep in mind the cats are essentially a stove. The idea is fuel which is not burned in the combustion chamber completely enough can form gases which are more worse pollutants. The stop those gases from being released the cat in effect burns the excess fuel at high enough temperatures to make the tailpipe gases much less toxic.
If the engine is running rich the cats can get hot enough to melt the internal components. Had a friend who ignored the check engine light on a Toyota pickup. He had bad O2 sensors but di not want to pay to replace them. His cat melted enough so he had serious backpressure which kept a lot of heat built up in the engine. Ruined an engine.

This is all just guess work on a forum thread. But if someone had a tune put on the car it may have made it run rich. The smell of a rich engine is a rotten egg smell ( hydrogen sulfide maybe).

 

[Hal_S550]

He

Hello; One way the cats can be damaged is if the engine runs rich for a long time. keep in mind the cats are essentially a stove. The idea is fuel which is not burned in the combustion chamber completely enough can form gases which are more worse pollutants. The stop those gases from being released the cat in effect burns the excess fuel at high enough temperatures to make the tailpipe gases much less toxic.
If the engine is running rich the cats can get hot enough to melt the internal components. Had a friend who ignored the check engine light on a Toyota pickup. He had bad O2 sensors but di not want to pay to replace them. His cat melted enough so he had serious backpressure which kept a lot of heat built up in the engine. Ruined an engine.

This is all just guess work on a forum thread. But if someone had a tune put on the car it may have made it run rich. The smell of a rich engine is a rotten egg smell ( hydrogen sulfide maybe).

there is a tune on the car. The smell I talk about is the normal exhaust smell that is slightly rich (probably normal) (like exhaust but has the slightest more hint of fuel smell to it maybe normal for 93, I’ve only owned 87 cars before this). I also had Lund tune back up the car after I got it so I ran some logs and he said everything was fine from the log files and the smell has not changed since then. Absolutely no sulfide smell. The tune also does not disable the O2 sensors so if it was out of the range the check engine light should come on. Also the power from driving the car seems normal.

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