Overview
| MLIT filing number | 1212650 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 4, 2005 |
| Manufacturer(s) | Isuzu |
| Component | Fuel Injection System |
| Production period | March 16, 1998 — October 30, 2001 |
| Vehicles affected | 11,191 units |
Defect
In the fuel injection system, improper assembly of the injectors during the manufacturing process left excessive clearance between the plunger and barrel on some units. This causes the O-ring to deform and sustain damage, losing its seal. Diesel fuel then mixes into the engine oil. Continued operation in this condition increases the oil volume in the oil pan; the diesel-contaminated oil is then drawn through the blowby hose into the intake manifold, causing engine speed to rise uncontrollably.
Corrective action
All vehicles: replace the injectors with conforming units. Because parts supply will require time, an interim measure is in effect: inspect all vehicles for diesel fuel contamination in the engine oil. On vehicles with confirmed leakage, replace the injector immediately with a conforming unit. On vehicles with no leakage, explain the periodic inspection procedure to the owner and schedule injector replacement at a later date.
Affected models & chassis ranges
This filing lists 2 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 |
|---|---|---|
| KH-UES73EW | ＭＵ | UES73EW-4100076 — UES73EW-4115460 |
| KH-UES73FW | ＷＩＺＡＲＤ | UES73FW-4100080 — UES73FW-4117364 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
原動機の燃料噴射装置において、インジェクタの組立て工程が不適切なため、プランジャとバレルの隙間が大きいものがあり、オーリングが変形、損傷して機密性が損われ、燃料の軽油がエンジンオイルに混入するものがある。そのため、そのままの状態で使用を続けると、オイルパンの油量が増大し、ブローバイホースを経由して吸気管に軽油の混入したオイルが吸入され、原動機の回転が上昇するおそれがある。
改善措置
全車両、インジェクタを良品と交換する。 なお、部品の供給に時間を要することから、当面の暫定措置として、全車両、オイル中への軽油混入を点検し、漏れているものは良品と交換し、漏れていないものは、定期的な点検方法を説明し、後日良品と交換する。
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=3006206