GM V-8 Engine Tick

[2024 White Tahoe]

GM has determined (decided?) that if your V-8 engine ticks at idle, for up to 10 minutes, that is normal: https://gmauthority.com/blog/2026/04/gm-tells-dealers-v8-engine-ticking-sound-at-idle-is-normal/

 

[blanchard7684]

Mine has this. Really pronounced in colder weather. Stethoscoping around it is prevalent in the exhaust, right at catalytic converter.

Engine and transmission are dead quiet. Including hp fuel pump.

 

[StinkyLinky8]

Mine has this. Really pronounced in colder weather. Stethoscoping around it is prevalent in the exhaust, right at catalytic converter.

Engine and transmission are dead quiet. Including hp fuel pump.

My 2018 6.2 does this as well. Took it to the dealer after I purchased with ~26k miles on it to have them look into it only to be told that it was normal and was the hp fuel pump. For what it’s worth, my 2014 Subaru BRZ does it too but it’s more of a cricket sound from the Ethenal in the gas and the fuel pump.