Other engine problem on the 2007 Chevrolet Corvette
2 crashes 1 fire 1 injury 4 of the 17 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
When other engine problem gets reported
Owners of the 2007 Chevrolet Corvette report other engine problem at a median of 25,000 miles. A quarter of the reports come in before 20,000 miles and a quarter after 50,000 miles, from 15 reports that carried an odometer reading.
A part like this is normally expected to survive 95,000 miles. It is the 10th most-reported problem on this model year.
The mileage distribution
The reported range runs from 10,000 miles at the tenth percentile to 70,000 miles at the ninetieth, a spread of 59,560 miles across the middle 80% of reports.
A window that narrow is the signature of a part that fails on its own schedule rather than on how the car is driven — which is usually a design or supplier problem rather than wear and tear.
67% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 12,240 miles | 18,886 miles | 24,139 miles | 48,000 miles | 71,800 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Of these reports, 2 a crash, 1 a fire and 1 an injury are mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $300–$4,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 21 model years of this car. It shows up earliest on the 2017, at a median of 500 miles, and latest on the 2022 at 115,000 miles.
By volume the 2006 carries the most reports, with 21; the 2007 has 17. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Valves of specifications. I had to pay out of pocket to get this fixed. If I would have dropped a valve while driving I could have loss control of my car. This is a known problem that chevrolet refuses to acknowledge 2007 z06 23884 miles 1 int .008" #1 exh .006" #3 int .0085" #3 exh .005" #5 int .0085" #5 exh .010" #7 int .009" #7 exh .005" #2 int .010" #2 exh .011" #4 int .010" #4 exh .012" #6 int .008" #6 exh .017" #8 int .007" #8 exh .006" max gm spec is .0037" which would roughly be .0075" on the wiggle test. So basiclly if the wiggle test is over .0075" the guides are out of spec.
I have a 2007 corvette z06 with 43 k miles on it. I decided to have someone check my car because of the article I had read about the ls7 engines having valve guide issues. I was sure that they would be ok because the corvette sites say it is only a minor amount of heads that were machined in correctly. I was having other work done to my corvette so looked for a place that does mostly corvette service, I told the mechanic to check my valve guides while he was doing the other work I was sure they would of been ok. Upon my surprise he sent me videos showing me that they were not ok and needed to be repaired. It cost me $1,950.00 to have my heads cnc and new valve guides and springs installed the old ones were very bad I have videos showing this, the car was running with little valve noise at the time but were still bad mechanic would not even dyno the car after seeing how bad they were.
Making a left turn in a stoplight inter-section the motor failed shutting off all power to the vehicle...motor failed due to excessive valve guide wear...vehicle was in motion on a city street
Also reported on the 2007 Chevrolet Corvette
Other fuel system problem
Other powertrain problem
Headlight failure or clouding
Other driver assistance problem
Fuel leak or fuel odor
Fuel tank, filler or EVAP failure
How far this goes
Complaints are voluntary, so 17 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does other engine problem happen on the 2007 Chevrolet Corvette?
Across 15 owner reports that included an odometer reading, half were filed by 25,000 miles. A quarter were filed before 20,000 miles and a quarter after 50,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other engine problem on the 2007 Chevrolet Corvette?
17 reports have been filed with NHTSA, about 1.0 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed