LS1 ticking noise on cold start up.

[someguy360]

My car has done 417000 K My. Loud ticking Notice sounds like Tappets or like a Diesel Engine. .when engine gets Hot after 20 minutes running The noise is not as loud. What's your opinion please

Lifters on an LS generally tend to start getting pretty tired and sloppy from around 200,000 onwards.

A new set of lifters is probably the only fix, you could try a bottle of lifter freeup in the oil but I'm not confident at that milage it will do much but worth a shot.

The fact that it gets quieter as it gets hot is a good sign that it's not a worn engine/bearing clearance issue.

 

[Johandre Fouche]

I put this in mine a couple of months ago no more lifter noise on cold start ups, it worked on my v6.

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=20&cad=rja&uact=8&ved=2ahUKEwiQ9bCBqvHnAhUayDgGHXAnDaUQFjATegQIAhAB&url=https://www.supercheapauto.com.au/p/nulon-nulon-lifter-free-and-tune-up---300ml/104058.html&usg=AOvVaw3YB7lwZ7OQLTb4VMNamvRC

Hi all,

I live in South Africa and drive a Chevrolet Lumina (Rebranded Holden Commodore VE 2009 6.0 V8 L98).

I also have the slight ticking noise - does anyone perhaps know of alternatives to "Lifter-Free and Tune-Up"?

This is not available in SA, and can't seem to find a shop that does international shipping.

Thanks.