EJ257 STI Engine Failure

EJ257 STI Engine Failure

Author
Discussion

x1_wcd

Original Poster:

1 posts

31 months

Friday 22nd April 2022
quotequote all
Food for thought!

Impreza STI hatchback on 70k miles, with full Subaru dealership history goes in for a routine engine oil and oil filter change. Before hand the car had been running perfectly as it should; within 10 miles of driving after picking the car up a knocking sound develops in the engine which has now been revealed as cylinder 3 big end bearing failure! 

In everyone's own opinion; where does the blame lie? Is somebody at fault for this?

Cheers!

TEKNOPUG

19,337 posts

212 months

Saturday 23rd April 2022
quotequote all
Fuji Heavy Industries for releasing an inherently flawed engine.

Smint

1,994 posts

42 months

Saturday 23rd April 2022
quotequote all
Full MD SH doesn't mean the car has been treated with any mechanical sympathy, ie allowed to warm up before hard driving and after driving tickover sufficiently to cool the turbo enough.
Also no guarantee the engine oil has been kept at sufficient level during those miles.
Course you might have had it from new and the above have been accounted for.

vxr2010

2,597 posts

166 months

Saturday 23rd April 2022
quotequote all
you can speak to the dealer and see what they say , what says the pick up pipe has not failed , a great engine with flaws , a very good engine after being forged , time to speak to a good engine re builder , after your chat with the dealer who did the service , i expect it’s just become an issue over time distance covered and use , one of those things

MDMA .

9,207 posts

108 months

Sunday 24th April 2022
quotequote all
Do you have the car? How much oil is in it now? Worth dropping the sump and measuring it.

2ZZ Top

3,028 posts

146 months

Sunday 24th April 2022
quotequote all
Even if you somehow pinned it on the dealer, they'll just rebuild it using standard bits. Total waste of time and money. Take it to your local reputable EJ builder who will have all the parts on the shelf and will hand it back bombproof and remapped. You'll have a car you'll want to keep forever.