? Drop oil pan to check pump pickup screen Toyota Yaris 1NZFE

[tmontague]

I've pulled the pan on my '02 echo when it had 375k km on it. Pick up was clean as new. Unless your car was neglected I wouldn't pull the pan and expect to find anything.

1nz's are noisy and it's typically the injectors. If it was bad piston slap you'd hear a diesel engine under your hood on really cold startups. Its a sound you don't forget when you hear an engine with bad piston slap. 1nz's aren't known for slap.

It's possible your valve clearances are off and you need new shims but even my echo's clearances were well within spec at 375k km so that isn't likely.

Fwiw my echo looked sort of like it had sludge when peaing into the oil fill hole. When I removed the head I realized it was just staining from years of use but no actual sludge. We took over ownership at 287k km and it was dd in brutal stop and go gta traffic and we were told it was "maintained"

It's surprising how resilient these engines are. Likely one I'm the reasons toyota kept it in production for so damn long