Mitsubishi / UD Trucks Super Great, Aero ACE and 3 more models Recall 1141350 — Engine

In October 2017, Mitsubishi & UD Trucks filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Engine, covering the Super Great, Aero ACE and 3 more models. The filing affects 32,065 vehicles manufactured between November 2009 and December 2014.

Overview

Filing in context

This notification is a joint filing by 2 manufacturers: Mitsubishi & UD Trucks.

The Engine is the most frequently cited component category in this archive, appearing in 72 of its 4,890 filings. This filing is one of 38 Mitsubishi notifications from 2017 in this archive. For scale, 985 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 5 years and 1 month.

Defect

On the engines of large trucks and buses, owners and automotive service providers were not informed of the need to periodically clean the fuel injection system. Without this cleaning, temperature fluctuations in the fuel can cause compounds to form within the fuel, causing the valves inside the fuel injection system to stick. This prevents proper fuel injection, leading to hard starting, white smoke emissions, and illumination of the engine control system warning lamp. In the worst case, fuel accumulated in the exhaust pipe may ignite, resulting in a vehicle fire.

Corrective action

On all vehicles, inspect the condition of the fuel injection system and, if signs of malfunction are found, replace the fuel injection system with new parts. In addition, inject cleaning agent into the fuel tank to remove compound deposits from inside the fuel injection system. The maintenance record will be updated to include periodic fuel injection system cleaning using the cleaning agent, and owners and automotive service providers will be notified of the importance of this periodic cleaning. Because preparation of the fuel injection system cleaning agent requires time, large buses whose exhaust pipe outlet is in close proximity to a plastic bumper will be prioritized for remedy.

Affected models & chassis ranges

This filing lists 60 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.

Original Japanese (MLIT source text)

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=3004128

Related recalls

Same manufacturer, same component

Other Mitsubishi filings involving the Engine, closest to this one by filing date.

Other recalls affecting the same models

Filings whose affected type codes overlap with this one, newest first.

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