2011 Infiniti QX56 Engine Problems
Engine complaints account for 40 of 78 total complaints (51%) filed against the 2011 Infiniti QX56, with a median failure mileage of 100,000. Most describe timing chain failures. No related recalls are listed for this issue.
- Engine complaints
- 40
- 51% of 78
- Crashes reported
- 0
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- 100,000 mi
- Related recalls
- 0
Typical engine symptoms owners report
- Owners describe a whistling or whining noise from the engine, especially during cold start-up, that later develops into a timing chain failure.
- Multiple reports describe the timing chain and associated parts failing or requiring replacement, in some cases leading to the engine stalling while driving on the highway.
- Some owners report the vehicle broke down repeatedly at low speeds and was diagnosed with a timing-related issue even after prior repairs.
- Several complaints mention the check engine light illuminating with a diagnosis that the catalytic converter needed replacement.
- One owner reported the speedometer malfunctioned at highway speed, dropping to speeds inconsistent with actual travel.
When 2011 Infiniti QX56 engine complaints were filed
First complaint Nov 7, 2012, latest Jul 20, 2026.
Engine recalls for the 2011 Infiniti QX56
No safety recalls on record for this model year.
Engine complaints by QX56 model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- What engine problems do owners report on the 2011 Infiniti QX56?
- Owners most often report timing chain failures, sometimes preceded by a whistling or whining engine noise, along with catalytic converter issues that trigger the check engine light.
- How common are engine complaints for the 2011 QX56?
- NHTSA lists 40 engine complaints out of 78 total complaints for the 2011 QX56, which is 51% of all complaints filed for this model year.
- Is there a recall for the 2011 QX56 timing chain issue?
- No related recalls are listed in NHTSA data for this engine problem.
- At what mileage do these engine problems typically occur?
- NHTSA data shows a median mileage of 100,000 at the time of the failure.