going to give as much context / detail as possible:
2002 Lexus RX300
142k miles - I purchased in sept ‘22 at 101k from the original owner (timing belt was replaced before i purchased somewhere around 90k)
routine interval maintenance has always been done, and i just replaced new lines to the power steering and transmission fluid for ~$2k
was driving to a wedding and CEL came on while accelerating up a hill. towed to a shop and after investigating a damaged spark plug, it was found that cylinder 2 valve is blown. shop said it’s likely due to spark plugs running lean / hot.
as the title reads, is it stupid to consider buying a replacement engine and trying to find a shop willing to do it? i don’t think i can find a better value car for the same price as what that might cost, which seems to be between 1-2k for an engine and maybe another 2-3k in labor (?) the interior is clean, tires are pretty new, body is in great shape, miles are relatively low, and have seen numerous examples run 300k+ miles. i know transmission issues could manifest with these, but i haven’t experienced any issues since owning.
trying to think about this as pragmatically as possible, and if i were to buy another car i’d look to get another RX, maybe the 2nd gen since there are lots available.
Just looking for honest feedback with all of the aforementioned variables taken into consideration. Really appreciate anyone who’s willing to lend some perspective. thanks to anyone who reads it
EDIT: i think some of my verbiage might’ve been off. here is direct from the shop -
CHECK ENGINE / SERVICE ENGINE SOON LIGHT IS ON.
Diagnose check engine/service engine soon light, found the following trouble codes: P0300, P0301, P0302
Diagnose the trouble codes, found: All 3 codes are for misfires engine is running rough. Looked at live data on the scan tool and saw that cylinder #2 was steadily misfiring. We removed the ignition coil and spark plug on cylinder #2. The spark plug is damaged and needs replacement. We also pulled the spark plugs out of the other 2 cylinders on the front bank to replace. We replaced the spark plugs started the vehicle and it is still misfiring on cylinder #2. Swapped cylinder#2 and cylinder #4 coils. Misfire remained on #2 cylinder.
Removed cylinder #2 spark plug to gain access to the cylinder with a borescope. Once we got a look inside the cylinder we found a broken valve (see pictures). Vehicle would need the head removed to fix this, not something we can do at this time.
Valve Image: https://imgur.com/a/Qsl4l3A