Pining noise when rev after warmed up engine.

MikeX

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Dec 23, 2024
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My 2025 1958 has piston slap or pining noise when engine is cold and goes away when warmed up.

This pining noise is when fully warmed up. Your land cruiser 1958 make same noise?



This is my engine when cold...normal?

 
Wow, really difficult to discern the suspect noise. This said, direct injection engines can be noisier than one is accustomed to, especially thin-wall all-aluminum powerplants.
 
The popping noises your hearing is normal turbo noises. The intake system recirculates boost pressure and the waste gate will open to reduce the pressure that the turbo is making. All in all it goes right out the tail pipe.

The pinging noise in your second video could be due to low octane fuel, are you running 91/93? It could also be some noise from the electric motor and clutch assembly. BTH I wouldn't worry too much about it unless you feel like it's getting louder or causing a performance issue.
 
Car came with full tank, no idea what they put. Put few times with 76 gas station 92 octane. Few of ppl here got same noise
 
That's most likely the direct injection injectors, because they're so high pressure they're really loud. Again, not something I'd be worried about.
 
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