In April 2019, Hino, Isuzu & UD Trucks filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Fuel Hose / Pipe, covering the Quon. The filing affects 9,714 vehicles manufactured between April 28, 2017 and December 24, 2018.
Overview
| MLIT filing number | 1144851 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | April 18, 2019 |
| Manufacturer(s) | Hino, Isuzu, UD Trucks |
| Component | Fuel Hose / Pipe |
| Production period | April 28, 2017 — December 24, 2018 |
| Vehicles affected | 9,714 units |
Filing in context
This notification is a joint filing by 3 manufacturers: Hino, Isuzu & UD Trucks.
The Fuel Hose / Pipe is the most frequently cited component category in this archive, appearing in 62 of its 4,890 filings. This filing is one of 37 Hino notifications from 2019 in this archive. For scale, 1,628 of the 4,890 filings in this archive report a larger number of affected vehicles; the vehicles involved here were manufactured over a span of about 1 year and 7 months.
Defect
On vehicles equipped with the GH11 engine type, the fuel return pipe was manufactured with an improperly selected material and an improperly specified tightening torque. Engine vibration stress causes cracks to develop at the pipe's adapter joint. Continued operation allows fuel to leak into the cylinder head, diluting the engine oil and triggering the oil pressure warning lamp and audible warning buzzer. In the worst case, the diluted oil may be drawn into the combustion chamber, causing unintended engine speed increase.
Corrective action
On all vehicles, check for applicable fault codes and inspect the fuel return pipe for cracks, then replace the pipe with a corrected part. Where applicable fault codes or cracks are confirmed, flush the engine interior. Where vehicle operating data confirms engine speed increase due to fuel dilution, replace the engine with a conforming unit.
Affected models & chassis ranges
This filing lists 31 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| 2DG-CF5AL | QUON | JNCMBN0B7JU032894 — JNCMBN0B4KU039450 |
| 2DG-CZ5BL | QUON | JNCMBP0E4JU032938 — JNCMBP0E8KU039487 |
| 2DG-HF5AL | － | JNCMBN0B8KU038074 — JNCMBN0B3KU039097 |
| 2DG-HZ5BL | － | JNCMBP0E2JU037314 — JNCMBP0E5JU037355 |
| 2DG-SF5AL | － | JNCMBN0B5KU038114 — JNCMBN0B2KU038510 |
| 2DG-SZ5BL | － | JNCMBP0E7JU037356 — JNCMBP0E2KU039176 |
| 2PG-CD5AL | QUON | JNCMBN0C7HU026287 — JNCMBN0C8KU038519 |
| 2PG-CD5BA | QUON | JNCMBN0C8HU021910 — JNCMBN0C3KU039660 |
| 2PG-CD5BL | QUON | JNCMB02C3HU025945 — JNCMB02C3KU039495 |
| 2PG-CD5CA | QUON | JNCMB02C1HU016208 — JNCMB02C5KU039658 |
| 2PG-CD5CE | QUON | JNCMB02C6JU031003 — JNCMB02C9KU039551 |
| 2PG-CD5CL | QUON | JNCMB02C6HU018195 — JNCMB02C2KU039648 |
| 2PG-CG4CA | QUON | JNCMBM0GXKU038485 |
| 2PG-CG5BA | QUON | JNCMB02G9HU025953 — JNCMB02G1KU039319 |
| 2PG-CG5BE | QUON | JNCMB02G5JU034378 — JNCMB02G5JU037104 |
| 2PG-CG5BL | QUON | JNCMB02G0JU033297 — JNCMB02G6KU039512 |
| 2PG-CG5CA | QUON | JNCMB02GXHU017229 — JNCMB02G8KU039656 |
| 2PG-CG5CE | QUON | JNCMB02G1JU031283 — JNCMB02GXKU039643 |
| 2PG-CG5CL | QUON | JNCMB02G5HU022337 — JNCMB02G4KU039539 |
| 2PG-CW4AL | QUON | JNCMBM0D6KU038215 — JNCMBM0D9KU038404 |
| 2PG-CW5AL | QUON | JNCMB02D5HU017046 — JNCMBN0D9KU039655 |
| 2PG-CW5BL | QUON | JNCMB02D1HU022941 — JNCMB02D1KU039469 |
| 2PG-CW5CA | QUON | JNCMB02D7HU022507 — JNCMB02D9KU039493 |
| 2PG-CW5CL | QUON | JNCMBP0D0HU022005 — JNCMB02D1KU039634 |
| 2PG-CX5BA | QUON | JNCMB02D6HU024538 — JNCMB02D4KU039630 |
| 2PG-CX5BL | QUON | JNCMB02D3HU026151 — JNCMB02D0KU039558 |
| 2PG-GK5AAB | QUON | JNCMBP0A3HU022537 — JNCMBP0A4KU039659 |
| 2PG-GK5AAB改 | QUON | JNCMBP0A2KU037831 — JNCMBP0A1KU037867 |
| 2PG-GK5AAD | QUON | JNCMB22A4JU027834 — JNCMB22A5KU039654 |
| 2PG-GK5AAE | QUON | JNCMB22A7JU029657 — JNCMBP0A8KU039616 |
| 2PG-GK5AAK | QUON | JNCMB02A1JU034874 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
（１）原動機型式ＧＨ１１の燃料装置において、燃料リターンパイプの材質選定及び締付けトルク設定が不適切なため、エンジン振動の応力によって、当該パイプのアダプター締結部に亀裂が発生するものがある。そのため、そのままの状態で使用を続けると、シリンダーヘッド内に燃料が漏れエンジンオイルを希釈させ、油圧警告灯の点灯及び警報ブザーが鳴り、最悪の場合、希釈したオイルが燃焼室内へ吸い上げられ、運転手の意図しないエンジン回転上昇に至るおそれがある。
改善措置
（１）全車両、該当する故障コードの確認及び燃料リターンパイプの亀裂を点検し、当該パイプを対策品に交換する。また、該当する故障コード及び亀裂が確認された場合は、エンジン内部を洗浄する。なお、車両走行データを確認し、燃料希釈によるエンジン回転上昇が確認された車両はエンジンを良品に交換する。
Source & verification
This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:
https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3004507
Related recalls
Same manufacturer, same component
Other Hino filings involving the Fuel Hose / Pipe, closest to this one by filing date.
Fuel Hose / Pipe — affects 8,969 vehicles.
Open recall detail →Fuel Hose / Pipe — affects 1,451 vehicles.
Open recall detail →Fuel Hose / Pipe — affects 198 vehicles.
Open recall detail →Fuel Hose / Pipe — affects 302 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Other (Control System) — affects 92 vehicles.
Open recall detail →Brake system (air brake) — affects 2,933 vehicles.
Open recall detail →Other (Control Device) — affects 26,885 vehicles.
Open recall detail →Other Equipment — affects 34,123 vehicles.
Open recall detail →Propeller Shaft — affects 17,587 vehicles.
Open recall detail →All Hino recalls · All Isuzu recalls · All UD Trucks recalls · All 2019 recalls · Recall Archive home