In April 1999, Isuzu filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Pressure Control and Transmission Unit, covering the MU, Wizard. The filing affects 4,914 vehicles manufactured between March 16, 1998 and March 1999.
Overview
| MLIT filing number | 1207330 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | April 16, 1999 |
| Manufacturer(s) | Isuzu |
| Component | Pressure Control and Transmission Unit |
| Production period | March 16, 1998 — March 1999 |
| Vehicles affected | 4,914 units |
Filing in context
The Pressure Control and Transmission Unit is the most frequently cited component category in this archive, appearing in 10 of its 4,890 filings. This filing is one of 13 Isuzu notifications from 1999 in this archive. For scale, 1,956 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.
Defect
In the vacuum pump of the brake booster, the valve spring seat on certain units is improperly assembled. Continued use allows reverse airflow at engine shutdown to displace the valve spring seat. In the worst case, the valve ceases to operate, causing brake pedal effort to increase beyond normal levels.
Corrective action
Replace the vacuum pump on all vehicles with a corrected part.
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-4109767 |
| KH-UES73FW | ＷＩＺＡＲＤ | UES73FW-4100080 — UES73FW-4110230 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
ブレーキ倍力装置のバキュームポンプにおいて、バルブスプリングシートの組付けに不適 切なものがあり、そのままの状態で使用を続けると、原動機停止時の空気の逆流により、 当該バルブスプリングシートがずれて、最悪の場合、バルブが作動しなくなり、ブレーキ ペダルの踏力が通常より重くなる。
改善措置
全車両、当該バキュームポンプを対策品と交換する。
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=3005598
Related recalls
Same manufacturer, same component
Other Isuzu filings involving the Pressure Control and Transmission Unit, closest to this one by filing date.
Pressure Control and Transmission Unit — affects 2 vehicles.
Open recall detail →Pressure Control and Transmission Unit — affects 115 vehicles.
Open recall detail →Pressure Control and Transmission Unit — affects 1,303 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Wiring — affects 7,673 vehicles.
Open recall detail →Engine Assembly — affects 10 vehicles.
Open recall detail →Fuel Injection System — affects 9,757 vehicles.
Open recall detail →Fuel Injection System — affects 11,191 vehicles.
Open recall detail →Wiring — affects 1,232 vehicles.
Open recall detail →