H3 Piston slap

[arkalpha]

2008 Alpha has a noise in the motor. I've been told it sounds like piston slap. Anyone experience that and or have an idea or a solution that worked for them?

 

[derian06]

Probably the lifters, does it go away after the engine gets hot?

 

[Ghostbuster]

How many miles? Try Risoline engine oil treatment. Also might wanna try there fuel system cleaner. Good stuff. If that stuff doesn't work then do a motor flush. Hope that solves your problem.

 

[woodwardsh3]

I had a 2000 gmc 4x4 with the 5,3 and it was load on a cold start up. But when it warmed up it was gone. Is it still doing it after it is warmed up. Have you checked for a cracked exhaust manifold or broken studs / bolts that can make a lot of noise too.

 

[arkalpha]

115,000 miles. Regular oil changes. No exhaust leak and yes warm or cold it doesn't matter. I've had a few people say sea foam, but I didn't want to try anything until I checked hear to see if it was fairly common.