Why did my low mileage engine fail?
Catastrophic engine failure at low mileage can result from severe internal mechanical damage, such as a failing connecting rod trying to break through the block. This leaves owners facing expensive total engine replacements or swaps instead of simple repairs.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Consulting online mechanics and forums to figure out if specific driving habits or bad luck caused the engine failure.
- 2topping off oil
- 3searching online for similar symptoms
- 4Getting the vehicle recovered to a garage for inspections
- 5Considering replacing the entire engine
- 6Getting a second opinion from another mechanic
- 7Parting out the vehicle
- 8Taking the car somewhere else for a second opinion
- 9Cleaning out the overflow and filling with fresh coolant
In their words
Unedited, most upvoted first, each linked to the thread it came from.
“I'm pretty screwed huh? Dealership diagnosed knocking and called for a whole new long block and turbo”source ↗
“From my limited research i’m coming to understand that it can be very serious and I will be taking it in somewhere else this week. But the thing that’s tripping me up is my car hasn’t given me any indication that it’s struggling.”source ↗
“Sorry car trouble stresses me tf out 🫡.”source ↗
“Is there anyway this behavior caused a blown motor at 56k miles? I don't see how, but it's hard to believe a well-cared for motor would blow at those miles.”source ↗
“The mechanic said the rod was trying to break thru the block and would require a total replacement.”source ↗
“I was driving it Saturday and it started making a horrible rattling noise on the highway. It reminded me a bit of a heat shield rattle, but the engine also seems to be revving very high to get any acceleration, and it shudders at idle (whether in drive or park).”source ↗
“They said something inside the motor seems to be broken, but are not sure what. They do not tear down the motors, but are looking for various replacement options.”source ↗
“Not the news I was hoping for, but I appreciate the input. Would a swap usually be better than a tear down?”source ↗
“It then briefly overran (full revs for 3 seconds maybe) before going back to normal revs, but pumped out lots of awful smoke before I turned it off.”source ↗
“So our 2016 2.2L Peugeot Boxer camper conversion has been consuming oil since we bought it a few months ago.”source ↗
“I was hoping for a belt, I was devastated when they told me I need a new engine, litterally worse case.”source ↗
Where this came up
People with this problem also raised
- 2Is a car totaled if the engine moved?
- 5Why does a new engine part break right after expensive dealership repairs?
- 53HubSpot is down and timing out right now
- 10Used car broke down immediately after buying from a dead dealership
- 2Why does my car suddenly slam on the brakes by itself?
- 8Engine misfires and RPM surging when driving uphill