Another 2021 z71 engine problem?

[Camaro1983]

Hey everyone! New here and i have a question about my new tahoe with 4k miles. Notice a knocking yesterday. Didnt happen all that often. Let it run for awhile and thought it was ok. Well tried to drive it down the road and the knocking got more consistent. Sounds like on top of the heads like a lifter? Tell me what you guys think? Any idea gow to post a video on here? Yes im a newb. Having it towed to the dealer monday. Thanks

 

[Fireman591]

Keep us posted. Sounds like you got a bad lifter. Getting more common

 

[Kpwweb]

If the engine shakes, especially when warm, probably a bad lifter. Mine developed same symptom. Was in shop LONG TIME waiting on parts.



Now how do you get the tranny in neutral without the engine running? Myself and the tow-truck operator could’t figure it out. Turn the engine off and the transmission shifted into park and put on the parking brake! Seems like the electronic shifter isn’t all it’s cracked up to be, And this was the GM roadside assistance tow company.

 

[Antarick]

If the engine shakes, especially when warm, probably a bad lifter. Mine developed same symptom. Was in shop LONG TIME waiting on parts.



Now how do you get the tranny in neutral without the engine running? Myself and the tow-truck operator could’t figure it out. Turn the engine off and the transmission shifted into park and put on the parking brake! Seems like the electronic shifter isn’t all it’s cracked up to be, And this was the GM roadside assistance tow company.

How long did you have to wait for parts?

 

[k1970]

Well, here in Arabia, people think this happens because the 0W-20 oil is too thin! I'm not sure, but it may happen. On the other hand, we can't change the recommended oil to another one!!

 

[avalonandl]

Shut it off with out putting the foot on the brake. Engage parking brake.