Does my piston need to be replaced?


Asked by May 12, 2018 at 02:50 PM about the 2005 Mitsubishi Outlander LS AWD

Question type: Maintenance & Repair

My engine has been knocking for some time now, I finally figured out the head
gasket had blown between to cylinders. Unfortunately when I took the cylinder
head off, I noticed damage to the piston, though there was no debris present.
Judging from this picture, does the piston need to be replaced?

1 Answer


Replacing just one piston would be a waste of money. Your engine needs a rebuild.

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