Tapping noise on cold start

[NigelM]

Hi All,
I have a ‘22 GT1 RWD with 12,000 miles (from new - traded my ‘18 Premium).
I’ve noticed that on cold starts it makes a noticeable tapping noise for 35 seconds and then disappears. Almost like there’s no oil or there’s a tappet or lifter issue. Sounds like my dry sump LS3 Corvette I used to own which was known for similar noises and was disconcerting! Others have asked me about it and I can’t give them an answer.
Any input from you guys out there?

 

[bfglitch]

Most likely the high pressure fuel pump. It's normal.

 

[bigsteve0279]

Definitely your HPFP till it gets lubricated. Some are louder than others. My 2023 GT2 AWD is extremely loud for the 1st 35 sec of cold starts also. I was told nothing to worry about. Hope this helps my friend.

 

[Ohiocruiser]

HPFP. Normal

 

[NigelM]

Most likely the high pressure fuel pump. It's normal.

Thx much

 

[NigelM]

HPFP. Normal

Thx Ohiocruiser

 

[NigelM]

Definitely your HPFP till it gets lubricated. Some are louder than others. My 2023 GT2 AWD is extremely loud for the 1st 35 sec of cold starts also. I was told nothing to worry about. Hope this helps my friend.

Thankyou Steve. Appreciate it

 

[NS_Stinger]

If it annoys you at startup a little tap of the throttle immediately quiets it down.

 

[D.J.]

Hi All,
I have a ‘22 GT1 RWD with 12,000 miles (from new - traded my ‘18 Premium).
I’ve noticed that on cold starts it makes a noticeable tapping noise for 35 seconds and then disappears.

post a video of the sound.... otherwise we are just blind guessing.


and, it's most likely the high pressure fuel pump.

 

[D.J.]

I have a ‘22 GT1 RWD with 12,000 miles (from new - traded my ‘18 Premium).

did your '18 stinger not have the exact same sound?