Quote:
Originally Posted by 96z2
OP update:
Dropped off at dealer 8/18/22. Their initial diagnostics pointed to an internal engine issue (not ignition, not fuel injection). They were finally able to take the engine out of the car and open it today and found a broken valve spring (I don't remember if it was intake or exhaust valve) on cylinder 2. Original CEL code was P0300 and P0303, cylinder 3. Apparently "lucked out" that there doesn't appear to be any collateral damage or piston damage.
Unbelievable how a 1-owner, bone stock car with only 27,600 miles, never tracked or autoxed (or really even driven hard for that matter) could have this issue. I thought the valve springs were upgraded at some point before 2017? No misshifts ever, oil changed every 5k miles or less, driven very conservatively, always let engine warm up completely before going past 2500 RPMs.
I'll do a search on the bad batch of 2017/2018 engines, but if anyone has experience with this or can point me to threads, I'd appreciate it. 5-year powertrain warranty ran out 1 month prior to this. Working with SOA to see what they can do. Seems like a design flaw or workmanship issue that they should be on the hook for. 2017 BRZ 6MT w/PP.
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There are almost no recorded cases of issues with 2017+ engines on this forum.
The springs were probably changed a couple of times over the years.
Bad parts make it into cars sometimes. You just had the horrible luck to get one of them.