| ---
|
| license: cc-by-4.0
|
| language:
|
| - en
|
| pretty_name: "Engine-Family Complaint Density (NHTSA, MY 2005-2025)"
|
| tags:
|
| - automotive
|
| - engines
|
| - nhtsa
|
| - vehicle-reliability
|
| - engine-defects
|
| - recalls
|
| - open-data
|
| - consumer-data
|
| size_categories:
|
| - n<1K
|
| configs:
|
| - config_name: default
|
| data_files:
|
| - split: train
|
| path: engine-complaint-density.csv
|
| ---
|
|
|
| # Engine-Family Complaint Density
|
|
|
| Curated problematic engine families (documented defect patterns — class actions, NHTSA investigations, or 100+ fleet complaints), with total NHTSA complaints, recalls, and complaints normalized per model-year entry. Density lets you compare families of different production volumes.
|
|
|
| ## Columns
|
| | column | meaning |
|
| |---|---|
|
| | `engine_family` | Engine family name |
|
| | `manufacturer` | Manufacturer |
|
| | `displacement` | Displacement |
|
| | `configuration` | Engine configuration |
|
| | `years` | Production years |
|
| | `modelyear_entries` | Matching model-year entries in DB |
|
| | `complaints` | Total NHTSA complaints across the family |
|
| | `complaints_per_modelyear` | Complaints ÷ model-year entries |
|
| | `recalls` | Total recalls across the family |
|
| | `alleged_fires` | Complaints alleging fire (unverified) |
|
| | `alleged_deaths` | Complaints alleging death (unverified) |
|
| | `url` | Source page on ProblemsByVin |
|
|
|
| ## Source & methodology
|
| Families are the editorial set powering /engines/. For each family we sum complaints/recalls/harm flags across every matching (year, make, model) in the DB. "complaints_per_modelyear" = total complaints ÷ model-year entries present. Complaints are unverified consumer reports.
|
|
|
| Canonical version, full methodology, and the other datasets: **https://problemsbyvin.com/data/** .
|
|
|
| ## License
|
| CC BY 4.0 — free to use with attribution to **ProblemsByVin (https://problemsbyvin.com)**.
|
|
|
