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i think it does to a degree but as you increase in revs the noise is drowned out by everything else. Also, cylinder pressures are lower at a light tip in around 2 k then when loaded leaving the piston to not rock as much due to the pressure on the top of the cylinder.

although I still believe my initial reasoning was solid I found a flaw in the method. When I hooked it up in the above post, the area clipped onto the engine was quiet. After all the discussion I focused more on the engine. The scope I used has 6 channels, I hooked 3 up on each side of tne...

I very much appreciate the discussion on this topic over the last few days. I believe we have moved the topic forward knowing and documenting the issue. I have found examples of this exact same noise on: 2011 Mustang GT 2017 Mustang GT 2018 Mustang GT 2018 Mustang GT350 The one major...

And the mystery continues...

agree for sure, seems to be on all coyote mustangs. With the 18+ being louder. The question remains, what is making the noise. Someday it will be clear.

Can you re-create the noise in park?

Perfect video! I hate to say but it sounds similar enough to say it could be the same noise.

Correct. The dual mass flywheel is a component to the manual cars only. Auto cars have what often looks like a flywheel, but it’s called a flex plate. This bolts the torque converter to the engine.

Really appreciate the response. Your comment about conditions for reproducing the rattle is extremely relevant to this discussion. Those who have manuals can recreate this in the driveway, driving, in gear and in neutral. While we cannot say one 10 speed car represents the entire population...

I wonder the same thing about the auto noise. My friend has a F150 and the 2k range has what I would describe as a loud valvetrain. It’s softer and more frequent than the 2k sound from my manual. Curious if any auto cars have video of their rattle? Would be good to compare as You said...

19 GT Manual 2k rattle Although this topic has had significant coverage, I wanted to provide both observations discovered during diagnosis and my theories based on those observations. I performed a series of tests to help determine the source and rule out other potential sources. Tests: ·...

Did the dealership correct the issue? If so, do you know what they ended up replacing?

Easy work around. Hold the FOB near the center top of the rear window ( touching the window), close the door, wait 1 second, pull the FOB away, no honk. Lock the car if you need to.

It has a tab similar to most other connections. Depress the tab and pull off the horn.

Correct, part# JR3Z-13832-A

Just updated the post, received the part from ford today and it’s incorrect. Still trying to figure out the correct PN.

Basically they are saying, the car came with a single tone and if you are disappointed by that, you can change to the new part at your own expense. They won’t replace a failed horn with a dual nor will they replace a working single with a dual. It’s unfortunate as it’s downright embarrassing...

I recently purchased a 2019 Mustang GT. The first time I locked the car, the beep from the horn sounded like a cheap econo box from the 90's. Having previously owned a 16 EB it did not sound correct. My EB had one of the 2 horns go out during warranty which was the sound the 19 made...