Misfire or rough idle on the 2011 Toyota Corolla
Only 7 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When misfire or rough idle gets reported
There are 8 reports of misfire or rough idle on the 2011 Toyota Corolla, 7 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
A part like this is normally expected to survive 92,000 miles. It is the 11th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 11,000 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
Putting it right typically runs $250–$1,600 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, every year of the Toyota Corolla
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.
Engine tries to stall at speeds of 50 to 40, more at 40.when this occurs the RPM needle jumps up past 3 then drops to below one comes up and jumps. I took it in to the dealer and they had just received a recall notice from toyota,it recommended it be flashed to stop what they said was a miss fire, this was done on 12/05/11. I drove it home it started doing it again,so I took it back in they reflashed it said that it would be alright. Not so it continues to misfire and act like is fixing to stall.I took it back again the head of service drove it said it was jumping in and out of overdrive just drive it don't worry about it .well it seems to be getting worse so I took it back in the service guy said after driving it was the best driving corolla he had been in ,course I knew that was not so cause to this day it keeps trying to stall in traffic.the steering seems to be getting hard to control it weaves more than it should like the front end is out of alignment but if you let go it tracks straight. I am really afraid to drive this car if it does stall in traffic there is going to be a serious wreck.I contacted toyota they said there is…
Engine tries to stall at speeds of 50 to 40, more at 40.when this occurs the RPM needle jumps up past 3 then drops to below one comes up and jumps. I took it in to the dealer and they had just received a recall notice from toyota,it recommended it be flashed to stop what they said was a miss fire, this was done on 12/05/11. I drove it home it started doing it again,so I took it back in they reflashed it said that it would be alright. Not so it continues to misfire and act like is fixing to stall.I took it back again the head of service drove it said it was jumping in and out of overdrive just drive it don't worry about it .well it seems to be getting worse so I took it back in the service guy said after driving it was the best driving corolla he had been in ,course I knew that was not so cause to this day it keeps trying to stall in traffic.the steering seems to be getting hard to control it weaves more than it should like the front end is out of alignment but if you let go it tracks straight. I am really afraid to drive this car if it does stall in traffic there is going to be a serious wreck.I contacted toyota they said there is…
2011 toyota corolla: have had car aligned 2 times due to excessive pulling to the right, therefore tires have worn unevenly and now need to be replaced at 17,000 miles. The edges of the tires wore out before 11,000 miles. I addressed the issue to the dealership, who at first told me I had to pay for the alignment; then I was told it would be aligned under warranty. It had to be aligned a scond time due to continuous pulling to the right. The dealership says I have to pay for tires out-of-pocket, even though I think toyota should at least pro-rate a new set of tires. Second issue is the engine running rough and unevenly. It idles rough, and since I paid to have the injectors cleaned, it gets worse gas mileage than ever. I now have the car in the dealership shop again to fix the idle. They just called and said the y had to replace and reset the engine control module. I expected the car to perform better and tires to last more than a year, as I purchased the car dec. 2012. *tr
Also reported on the 2011 Toyota Corolla
Airbag inflator rupture
Other steering problem
Other speed control problem
Other body or interior problem
Cruise control failure
Other brake problem
How far this goes
This page is kept out of search results because 8 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 8 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 misfire or rough idle happen on the 2011 Toyota Corolla?
Across 7 owner reports that included an odometer reading, half were filed by 10,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is misfire or rough idle on the 2011 Toyota Corolla?
8 reports have been filed with NHTSA, about 0.1 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