2018 GT low rpm engine rattle, cylinder damage pics, Ford buyback process

[DevereIII]

I've been meaning to report here that I used Pennzoil 5w30 in my last oil change a couple of weeks ago. I could always hear the rattling at 1900 - 2200 RPM at a sub-moderate level. On warm up the most until it's hot and then you can barely hear it. With the 5w30 in I have observed a noticeable difference in the rattle. I can still hear it but it has a slightly lower pitch to it, and it is definitely less noticeable/louder than with 5w20!

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[Helios]

Did the first oil change yesterday flushing my factory fill. And used oem motorcraft with the fl500 filter, car is a ninja makes no abnormal noise and no sign of any tick (rumors say it appear after first oil change)

Touching wood. Got a good one i think

 

[GMONSTAH]

More and more I’m convinced the 2k rattle is a transmission issue. I drove 430 highway miles this weekend, and the rattle does not occur in 5th or 6th gear (I have the 6sp).

That may explain why some folks who had engine swaps the rattle came back. I really wish I could swap out the tranny and clutch to find out. Actually contemplating how to do that.

 

[GMONSTAH]

Either that, or I have a 2k rattle from the tranny that sounds exactly like what is believed to be piston slap (or the competing theory of the DI fuel system).

 

[sebounet]

More and more I’m convinced the 2k rattle is a transmission issue. I drove 430 highway miles this weekend, and the rattle does not occur in 5th or 6th gear (I have the 6sp).

That may explain why some folks who had engine swaps the rattle came back. I really wish I could swap out the tranny and clutch to find out. Actually contemplating how to do that.

But both manual and auto has the same rattle, how can it be possible ?

 

[sebounet]

Did the first oil change yesterday flushing my factory fill. And used oem motorcraft with the fl500 filter, car is a ninja makes no abnormal noise and no sign of any tick (rumors say it appear after first oil change)

Touching wood. Got a good one i think

3 times i did an oil change at Ford, and each time i have checked they didn t put enough oil (they put the same amount as 2017 and older) I wonder if they did the same thing at the first oil change that damage the engine.

 

[vince.fr]

hello the mustang community,
i live in france and i bought a new 2020 bullitt, i also have this noise between 2000 and 3000 rpm, my car now has 3300 miles but ford does not recognize this problem at home ... .
do you know if your ford has a Technical Support Bulletin for this quality problem?
Thanks for your help .
vincent

 

[Pittpa]

But both manual and auto has the same rattle, how can it be possible ?

My 6-speed has the rattle in 5th gear as well as the lower 4 gears. I can even hear it on the highway. I don't know about 6th gear, I rarely use it. How is it possible? It's not transmission related, I suppose.
After hearing the same rattle in a 2019 Bullitt on their lot, and talking to Ford, my local dealer declared it was a "feature". That is to say, normal.

 

[sebounet]

I can hear the rattle more and more. 40000 miles, 3 years. I m fed up, i was wondering if i will buy it at the end of the lease. The answer is no. I bought a tesla and looking for a convertible toy for summer (porsche) but no more mustang for me

 

[GMONSTAH]

hello the mustang community,
i live in france and i bought a new 2020 bullitt, i also have this noise between 2000 and 3000 rpm, my car now has 3300 miles but ford does not recognize this problem at home ... .
do you know if your ford has a Technical Support Bulletin for this quality problem?
Thanks for your help .
vincent

Nope, no bulletin that specifically addresses this rattle. I think most of us are annoyed. The only real solution so far is to turn up the radio. Sorry, I wish I had better news on this.

 

[GMONSTAH]

I can hear the rattle more and more. 40000 miles, 3 years. I m fed up, i was wondering if i will buy it at the end of the lease. The answer is no. I bought a tesla and looking for a convertible toy for summer (porsche) but no more mustang for me

I don’t blame you, I’m starting to look at other vehicles as I just can’t seem to simply ignore it.

 

[GMONSTAH]

But both manual and auto has the same rattle, how can it be possible ?

I don’t have a good answer. I wish I could swap my tranny/clutch for 5 minutes just to rule it out.

 

[djpheer]

I found the solution to this issue. The solution was, I stopped giving a crap about 6 months ago.

 

[RalphK]

I found the solution to this issue. The solution was, I stopped giving a crap about 6 months ago.

Yep, that's what warrantees are for.

 

[Pittpa]

The used '18 that I test-drove had the loud tick immediately on startup. I did not know about it at that time and I would have been reluctant to buy the car even if I had been interested in that specific car at the time. The salesman made no mention of it being a common noise.
So I went on to buy a new one, and ironically got this "other" noise that is the subject of this thread.

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