Fuel leak
Japan
Published 10 Oct 2024
Ref JP-1155530
Honda: High-Pressure Fuel Pump
Translated from Japanese · machine translation
- Country
- Japan
- Published
- 10 Oct 2024
- Units affected
- 62844
- Reference
- JP-1155530
Affected vehicles
Honda ZR-V 2022–2024
Honda Civic 2022–2024
Hazard
In hybrid vehicles, improper machining processes for high-pressure fuel pump components can cause metal particles to become lodged between pump components and machining fixtures. This can result in cracks forming at the machined surface edges. Continued operation allows vibration during pump operation to propagate cracks through the component, potentially leading to fuel leakage.
Show original (日本語)
ハイブリッド車において、高圧燃料ポンプ構成部品の加工工程が不適切なため、加工時の金属粉が当該ポンプの構成部品と加工治具の間に噛み込むものがある。そのため、加工部端面に亀裂が発生し、そのまま使用を続けるとポンプ作動時の振動で亀裂が貫通し、燃料漏れに至るおそれがある。
Remedy
Measure HC concentration near the high-pressure fuel pump on all vehicles. Replace units exceeding the standard concentration threshold with corrective parts.
Show original (日本語)
全車両、高圧燃料ポンプ付近のＨＣ濃度を測定し、濃度が基準を超えているものは対策品と交換する。