Another Gen 3 Coyote Knocking?

involutions · Oct 20, 2024

OK, so of course there are several obnoxious and worrisome noises that we are told are "normal" for Coyote engines (and which only seem to be the case in Ford engines as far as I know). I'm a Honda guy, so these noises make me very disappointed in my choice after buying a Ford.

With that said, here is a video of my engine. The noise is most noticeable inside the cabin on the driver's side, but you can hear it under the car as well. I can ONLY hear it at idle, or maybe up to 800 RPM.

I'm not talking about the normal "SHHHHHHH" sound of cam chains and transmission bearings whirring around, and I'm not taking about the typical BBQ lighter noise which you can also hear. I'm talking about the almost rhythmic knocking that sounds sort of like someone tapping the engine block with the tip of a baseball bat.

I've also included a youtube link from another forum member that has a similar noise, but not coming from exactly the same location (mine isn't as noticeable from the top of the engine...).

I know there is a TSB on a noise "like" this one for engines up to 2019, but my car is a 2022 Mach 1. My dealer says, "Normal" but has no reference from Ford literature stating such. This is NOT coming from the HPFP. I put a stethoscope on several points on the engine and accessories, and it seems like it's loudest when the stethoscope is touching the block or timing cover.

ice445 · Oct 20, 2024

Have you tried turning up the radio or installing a louder exhaust

involutions · Oct 20, 2024

ice445 said:
Have you tried turning up the radio or installing a louder exhaust

Hmmm. You must work at my local dealership...

And yes, I have...

Unbridled5.0 · Oct 20, 2024

Sounds like exhaust pulses to me

ice445 · Oct 20, 2024

involutions said:
Hmmm. You must work at my local dealership...
And yes, I have...

Unfortunately the dealer will do nothing unless it's blown up. I hate that's the way it is but it's the unfortunate reality lol

Unbridled5.0 · Oct 20, 2024

If you're used to Honda quality, you're going to hate a lot of things about that car and ford. Speaking from experience having sold a Honda before buying my 5.0

involutions · Oct 20, 2024

Unbridled5.0 said:
If you're used to Honda quality, you're going to hate a lot of things about that car and ford. Speaking from experience having sold a Honda before buying my 5.0

Yup. This is my second Mustang, and I've owned two Hondas. I thought they would have gotten better 7 years into the S550 platform, but compared to my 2015 GT, the radio in the '22 is less powerful, the radio seems cluttered with the navigation system, the highly praised Tremec shifts like a dump truck when it's cold (as in, almost impossible to get into 2nd or 3rd gear until it's warmed up), and surprisingly, the brakes don't seem to stop the car as well, despite what the specs and magazine articles say.

I wish magazine writers discussed all the real-world problems these cars have rather than just talk about all the good points. I wish Honda could build a Mustang.

involutions · Oct 20, 2024

ice445 said:
Unfortunately the dealer will do nothing unless it's blown up. I hate that's the way it is but it's the unfortunate reality lol

The funny part is that the service writer told me, "Yeah, but you still have the 5 year, 100,000 mile warranty..." to which I replied, "what good is that if you won't fix it when there is clearly already an annoying problem, but just not catastrophic?"

The good news is that the noise goes away after idle. I just hope it doesn't come apart at 7,500 RPM merging onto the highway...

Unbridled5.0 · Oct 20, 2024

involutions said:
I wish Honda could build a Mustang.

For real. The interior wouldn't rattle front back and side to side, the transmission/clutch wouldn't lock you out of gears, the engine wouldn't click, clack, knock, and then rattle. It's fucking pathetic.

ice445 · Oct 20, 2024

Unbridled5.0 said:
For real. The interior wouldn't rattle front back and side to side, the transmission/clutch wouldn't lock you out of gears, the engine wouldn't click, clack, knock, and then rattle. It's fucking pathetic.

The American built civics are just as terrible with build quality imo

Forestlump · Oct 21, 2024

Ford have played a great game with the Mustang, cheap with endless mods and accessories, some even maintain warranties. You can turn it in to any purpose you like wether its drag, circuits or just a fast road car, probably for less than the price of an M3.

It's a shame ford doesn't sort this crappy quality thing that's plaguing them all though. Miss aligned panels, premature corrosion and hit or miss if you get one with a good engine and gearbox.

I've got corrosion in the bonnet and front wings and recently had to replace the pcm outside of warranty. Garaged 6 year old car with 15k miles.

It seems like the gen 3 engines suffer a bit of diesel knock due to the DI. That's what I noticed over the gen 2. That's what I hear in your video, unless I'm missing something.

Jstang23 · Oct 21, 2024

I know your dealership says they can't do anything but to be honest I agree with them. These gen 3 engines are VERY noisy engines. They have direct injection and happen to be all aluminum engines. There is almost no natural sound insulation like you would see on an iron block engine. So the dealership doesn't want to crack open the block unless they have too, and I don't think you'd want a B level tech rummaging around in your engine unless it was absolutely necessary.

I know as an owner a weird noise would freak me out too, but if you wanted a quite engine you shouldn't have bought a coyote, lol! They've bene noisy since the first gen. Im' sure it's fine, I wouldn't worry especially if you have the warranty.