piston slap on a 2000 suburu ?

Asked by Guru9Z5X36 Nov 27, 2020 at 01:03 PM about the 2000 Subaru Outback

Question type: General

is the piston slap on a 2000 suburu dangerous ?

2 Answers

910

DA is correct. MOST early noughts 2.5i suffer from cold-running piston slap as their rings were speced loose enough to wobble until isothermal running ocurs at set temp. If doesn't completely quench after 20min be careful to not drive under WOT at low rpm to reduce stress. You'll probably be ok unless it still hammers at high rpm when hot, indicateing throwing a rod sometime fairly soon. Good luck.

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