2018 GT engine noise with only 2800 miles

[Red Turtle]

^^ I notice that.

Light tap in the exact situation you describe


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I took my youngest daughter for a ride and was holding a gear about 2k rpm doing the speed limit. I gave it a little throttle and noticed an audible sound with a light touch of the throttle that remained as long as I held it.

Not a great feeling for me considering my 12' got a new long block just over 2k miles for what we knew back then as the "tick" that showed up one day and didn't go away.

 

[gimmie11s]

My 14 was flawless but I’ve read these 18’s are having issues with valve springs.

Fingers crossed!

I already have at least 15 passes down the strip....

 

[Red Turtle]

My 14 was flawless but I’ve read these 18’s are having issues with valve springs.

Fingers crossed!

I already have at least 15 passes down the strip....

I was out of town this weekend and then de-modding my 16' since Sunday so I have still only put about 75 miles on the 18'. The noise started last night when I matted the car in 2nd gear about 3500rpms and upon WOT is sounded like detonation for a second (not surprised as they probably put 87 octane in it). Then appeared the odd sound when holding rpm's and adding a touch of throttle.

I looked at my door jam sticker and the car is an early 18' with a production date of 11/17.

 

[JJackson515]

Any update on this?

 

[Papaw]

Having a problem with a runner sounds weird. They don't move or anything. The air inside them is all that moves. The 18s don't have the old charge motion plates do they?

 

[RAUL GUERRA]

Any update on this? Took my 18 in last week for similiar noise. Havent heard from the dealer still wondering what the problem is

 

[Chris Barnes]

I brought my 1,500 mile 2018 GT PP Premium A10 in on tuesday for same noise. Long story short, they called to day and diagnosed with #3 wrist pin issue. Engine being replaced. Good luck!

 

[MG0h3]

I brought my 1,500 mile 2018 GT PP Premium A10 in on tuesday for same noise. Long story short, they called to day and diagnosed with #3 wrist pin issue. Engine being replaced. Good luck!

I'd suspect this or similar for the OP. That does not sound like valvetrain to me; too deep.

 

[Red Turtle]

I brought my 1,500 mile 2018 GT PP Premium A10 in on tuesday for same noise. Long story short, they called to day and diagnosed with #3 wrist pin issue. Engine being replaced. Good luck!

What is the build date of your car?

 

[Chris Barnes]

Not sure. It's at the dealer now. It was delivered on May 3rd, so built sometime mid April I believe.

 

[Red Turtle]

Most that I have read or heard were early builds in November. Sucks to hear man and I am a little squeamish myself, as I went through a longblock replacement with my 12' GT after 1500 miles when she started ticking like a time bomb! The noise that I am hearing resembles those with the same and/or replacements. It sounds really bad first thing in the morning when driving out of my community as you can hear is bouncing off the homes.