天呐，我妈2018年的福特Edge火花塞断在气缸里了！修车行说得换新发动机，要5600美元，这也太坑了吧！

They are on the hook for this . As a tech that work in dealership and if I had a TSB on spark plug that seized up I would soak the holes with penetrating oil and let the oil soak for 30 mins .

If tech broke it trying to remove it , it is on him . They had knowledge of this issue and attempted to remove it . I personally have a 2006 F150 with 5.4 V8 that the plug break of or the thread pull out . Motor-craft plugs have a history with them breaking of that why the sell the tools to hell remove the when they break . I would as a tech suck it up and pull the head off to get it out not whole engine .

They just trying to get money off a problem they created . They need to fix it . It on them

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I bought a certified used tundra a while back and when I got home I just wanted to make sure everything under the hood was actually good to go (never fully trusted mechanics). Pulled the dip stick and saw nothing..hmm ok let’s just pull the oil plug and see how much is in there, nothing. Called the dealer and had truck towed there, ripped them a new one and asked for a new engine or money back for neglect. It’s certified used truck, which they clearly didn’t bother to inspect they just added a higher sticker price.

Long story short the dealer refused both, luckily I had a close friends who’s uncle was at the top off the food chain at Toyota + a letter from my attorney. Service manager called me the next day with a completely different attitude stating a new engine would be installed free of charge w/warranty and a rental would be ready until job was finished.

Legal always wins.

Do you happen to know if it was low on coolant? It obviously had a code for a cyl#2 misfire, which would be a P0302 and probably a P0316. If it's low on coolant, there is most likely coolant intrusion in the cylinder, causing the plug to be stuck, and that's why it broke.

Ford has a TECHNICAL SERVICE BULLETIN
2.0L EcoBoost - Coolant In Cylinders, White Exhaust Smoke
And/Or Illuminated MIL(misfire with codes P0300, P0301, P0302, P0303, P0304 and/or P0316)which means it would get a replacement Long Block if the vehicle is still under power train warranty, which it looks like its not if it's at 75000 miles-ish. She could always contact Ford customer care and see if they'd be willing to offer AWA(After Warranty Assistance) meaning, her, the dealer and Ford would all pay a portion of a new long block or perhaps a head gasket replacement and spark plug extraction.

All of this is dependent on if there is coolant intrusion in the cylinders.

I own a repair shop in a smaller town in CA. Last week we replaced spark plugs on a 2014 Grand Caravan, during final test drive it began misfiring, we brought it back in and went to remove the plug and the insulator and tip had fallen into the cylinder, no explanation and really weird failure, we believe the plug was defective. Either way, we put our client in a rental vehicle and just pulled the head today to make proper repairs and fix it right at no additional cost to them, it was not their fault it happened. If small time me can go that far out of my way to take care of a client then why I'm the hell can the dealership she bought the damn car from not do similar? It may not be their fault it broke, but they should make a request to the manufacturer for help on the bill if the plugs really were original as that should not have happened. I opened a warranty claim with the part manufacturer and hope that we get something out of it(doubtful) but either way we are taking care of the client first and asking questions later. Find a good shop near you that actually cares and dont take your business to the dealership anymore.