I have a Piston/Engine Defect according to the mechanic at the car shop. Any time any acceleration is applied you can hear the knocking. I believe it should be covered through the class action alleged that 2011-2016 Elantras engines (including the Limited trim) have a piston defect leading to engine failure. A settlement offered extended warranties, engine repairs, and reimbursement. I was unaware and have already spent tons of money towards repairs to the engine over the years. Now I am aware of this lawsuit and would like some kind replacement.
2011 Hyundai Elantra engine problems
97 complaints (22% of all complaints for this car). Typical mileage when it fails: 79,000. 2 crashes reported.
- owner complaints
- 97
- of this car's complaints
- 22%
- typical mileage
- 79,000
- crashes
- 2
- recalls
- 0
Which part fails
- Exhaust system1
At what mileage
Complaints by mileage at the time of the problem.
Hyundai Elantra engine problems in other years
Specific symptoms reported on the 2011 Hyundai Elantra engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Knocking 35Won't start 34Engine failure 29Check engine light 22Stalling 21Loss of power 7
Related recalls
No recalls on record for this model year.
What 2011 Hyundai Elantra owners say
Most recent owner complaints, unedited.
Car stop working once I got home I notice while I was driving the car kept back firing and Jurking while driving .had a mechanic look at the car he tried to start it but it started and shut off..he even tried to jump start the car with the jumping cables but it will not start..he told me it was electrical..I have a brand new battery and a complete tune up on the car..I have not been able to drive the car in 3 weeks
My engine completely stop working.
UnKnown. When financing the vehicle through Adonis Auto Group I was unaware of the unrepaired safety recall. Also I am under the impression nothing was done to the car before purchasing it, I have had to make repairs to the car only after 10,000 - 15,000 miles of driving. For example replacing the control arm, axle, brake hardware. My point is they are selling cars without repairing them and not advising the customer upon purchase. I also asked for the repair paperwork for what has been done to the car before purchase and never received it.
Unknown Sensors possibly is the issue
They have failed to address the recall in a timely manner. Sep 22,2023 Manufacturer Recall Number251 the federal safety agency Recall Number23V651000
When I start the engine, I hear pronounced knocking sounds in the engine for approximately 1-2 seconds, and they are quite loud. As the engine warms up, the knocking persists, albeit at a lower volume. The ongoing knocks are not as loud, resembling a consistent noise similar to that of a diesel engine, although it is not a diesel-powered vehicle
There's a piston slap ,the engine block is damaged to the risk pin bushing ,connecting rods needs replacing the piston slap noise is in the upper end of the engine ,the gas tank want hold gas
10 am Sunday morning going to church I am about 2 miles away from home I started hearing trickled sound at front before entering the freeway. Then about 5 miles before my exit the noise start to get louder and I decided to go 25 mph after I exited the freeway. I stopped at AutoZone parking lot to check and didn't find anything unusual.No engine lights or anything on the dashboard. After 2 hours parked at AutoZone I drove it home at slow speed and decided not to use the freeway so I can keep moving 25 mph max. It's a scary situation and good thing is I'm the driving not my wife. It has closed to 130,000 miles.
The contact owns a 2011 Hyundai Elantra. The contact stated while driving 40 MPH, she heard an abnormal sound coming from the front of the vehicle. The contact stated no warning light was illuminated. The contact was able to continue driving to her destination. The contact took the vehicle to the local dealer, where it was diagnosed with needing a piston to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 123,500.
Questions about the 2011 Hyundai Elantra engine
Does the 2011 Hyundai Elantra have engine problems?
Owners have filed 97 complaints about the engine of the 2011 Hyundai Elantra, 22% of all its complaints, more than any other problem.
At what mileage do 2011 Hyundai Elantra engine problems start?
The typical (median) mileage in owner complaints is 79,000 miles.
Was there a recall on the 2011 Hyundai Elantra engine?
There is no recall for this problem on this model year.
What year does the Hyundai Elantra have bad engine?
The Hyundai Elantra model years with the most engine complaints are 2017 (294 complaints), 2013 (235 complaints) and 2014 (168 complaints).
Other 2011 Hyundai Elantra problems
Airbags 77Steering 75Suspension 66Electrical 51Brakes 44Driver assistance 38Transmission 21Wheels 18Acceleration 16Tires 12Lights 10Fuel system 8Visibility 7Body 6Seat belts 2
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