Overview
| MLIT filing number | 1137190 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | December 10, 2015 |
| Manufacturer(s) | Isuzu |
| Component | Engine |
| Production period | August 31, 2005 — July 16, 2010 |
| Vehicles affected | 17,686 units |
Defect
In the engines of large trucks, the oil thermo valve opening temperature is set incorrectly, causing piston temperatures to rise and subjecting the pistons to excessive load, which can cause cracks to form. Continued operation allows the cracks to propagate until a hole forms in the piston, resulting in reduced engine output and white exhaust smoke. In the worst case, the vehicle may become inoperable.
Corrective action
On all vehicles, vehicle driving data will be reviewed. Vehicles with high load frequency will have their pistons inspected; any piston found to have a crack will have the engine replaced with a conforming unit. Blowby gas flow will also be inspected; engines with excessive flow will be replaced with conforming units. On vehicles compliant with the 2005 emissions regulations, the thermostat and oil thermo valve will be replaced with corrected parts.
Affected models & chassis ranges
This filing lists 104 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 |
|---|---|---|
| ADG-CYJ77W7 | GIGA | CYJ77W7-7000008 — CYJ77W7-7000527 |
| ADG-CYJ77W7A | GIGA | CYJ77W7-7000008 — CYJ77W7-7000527 |
| ADG-CYL77V7 | GIGA | CYL77V7-7000009 — CYL77V7-7000434 |
| ADG-CYL77V7A | GIGA | CYL77V7-7000009 — CYL77V7-7000434 |
| PDG-CXE77X8 | GIGA | CXE77X8-7000003 — CXE77X8-7000316 |
| PDG-CXG77X8 | GIGA | CXG77X8-7000003 — CXG77X8-7000238 |
| PDG-CXM77V8 | GIGA | CXM77V8-7000001 — CXM77V8-7000025 |
| PDG-CXY77Q8J | GIGA | CXY77Q8J-7000001 — CXY77Q8J-7000028 |
| PDG-CXY77S8J | GIGA | CXY77S8J-7000001 — CXY77S8J-7000026 |
| PDG-CXY77V8J | GIGA | CXY77V8J-7000007 — CXY77V8J-7000112 |
| PDG-CXZ77K8 | GIGA | CXZ77K8-7000005 — CXZ77K8-7001528 |
| PDG-CYE77Y8Z | GIGA | CYE77Y8Z-7000003 — CYE77Y8Z-7000028 |
| PDG-CYG77Y8 | GIGA | CYG77Y8-7000003 — CYG77Y8-7000011 |
| PDG-CYG77Y8Z | GIGA | CYG77Y8Z-7000001 — CYG77Y8Z-7000003 |
| PDG-CYH77W8 | GIGA | CYH77W8-7000002 — CYH77W8-7000129 |
| PDG-CYJ77W8 | GIGA | CYJ77W8-7000014 — CYJ77W8-7006030 |
| PDG-CYJ77W8A | GIGA | CYJ77W8-7000014 — CYJ77W8-7006030 |
| PDG-CYJ77W8L | GIGA | CYJ77W8L-7000001 — CYJ77W8L-7000051 |
| PDG-CYJ77W8Z | GIGA | CYJ77W8Z-7000001 — CYJ77W8Z-7000067 |
| PDG-CYL77Q8 | GIGA | CYL77Q8-7000005 — CYL77Q8-7000256 |
| PDG-CYL77R8 | GIGA | CYL77R8-7000001 — CYL77R8-7000058 |
| PDG-CYL77T8 | GIGA | CYL77T8-7000001 — CYL77T8-7000017 |
| PDG-CYL77V8 | GIGA | CYL77V8-7000008 — CYL77V8-7004790 |
| PDG-CYL77V8A | GIGA | CYL77V8-7000008 — CYL77V8-7004790 |
| PDG-CYL77V8Z | GIGA | CYL77V8Z-7000002 — CYL77V8Z-7000132 |
| PDG-CYM77P8 | GIGA | CYM77P8-7000003 — CYM77P8-7000097 |
| PDG-CYM77Q8 | GIGA | CYM77Q8-7000002 — CYM77Q8-7000215 |
| PDG-CYM77R8 | GIGA | CYM77R8-7000001 — CYM77R8-7000059 |
| PDG-CYM77V8 | GIGA | CYM77V8-7000003 — CYM77V8-7000394 |
| PDG-CYM77V8Z | GIGA | CYM77V8Z-7000001 — CYM77V8Z-7000011 |
| PDG-CYY77Q8J | GIGA | CYY77Q8J-7000001 — CYY77Q8J-7000042 |
| PDG-CYY77S8J | GIGA | CYY77S8J-7000001 — CYY77S8J-7000011 |
| PDG-CYY77V8 | GIGA | CYY77V8-7000002 — CYY77V8-7000219 |
| PDG-CYY77V8J | GIGA | CYY77V8J-7000002 — CYY77V8J-7000594 |
| PDG-CYY77V8Z | GIGA | CYY77V8Z-7000002 — CYY77V8Z-7000019 |
| PDG-CYZ77P8 | GIGA | CYZ77P8-7000002 — CYZ77P8-7000022 |
| PDG-CYZ77Q8 | GIGA | CYZ77Q8-7000003 — CYZ77Q8-7000286 |
| PDG-CYZ77Q8J | GIGA | CYZ77Q8J-7000001 — CYZ77Q8J-7000060 |
| PDG-CYZ77S8 | GIGA | CYZ77S8-7000001 — CYZ77S8-7000033 |
| PDG-CYZ77S8J | GIGA | CYZ77S8J-7000001 — CYZ77S8J-7000021 |
| PDG-CYZ77V8 | GIGA | CYZ77V8-7000004 — CYZ77V8-7000309 |
| PDG-CYZ77V8J | GIGA | CYZ77V8J-7000001 — CYZ77V8J-7000004 |
| PJ-CXG77X6 | GIGA | CXG77X6-7000079 — CXG77X6-7000339 |
| PJ-CXM77V6 | GIGA | CXM77V6-7000001 — CXM77V6-7000029 |
| PJ-CXY77Q6J | GIGA | CXY77Q6J-7000016 — CXY77Q6J-7000017 |
| PJ-CXY77V6J | GIGA | CXY77V6J-7000018 — CXY77V6J-7000090 |
| PJ-CYE77Y6Z | GIGA | CYE77Y6Z-7000002 — CYE77Y6Z-7000055 |
| PJ-CYG77Y6 | GIGA | CYG77Y6-7000020 — CYG77Y6-7000023 |
| PJ-CYG77Y6Z | GIGA | CYG77Y6Z-7000006 — CYG77Y6Z-7000015 |
| PJ-CYH77W6 | GIGA | CYH77W6-7000001 — CYH77W6-7000025 |
| PJ-CYJ77W6 | GIGA | CYJ77W6-7000013 — CYJ77W6-7001569 |
| PJ-CYJ77W6A | GIGA | CYJ77W6-7000013 — CYJ77W6-7001569 |
| PJ-CYJ77W6L | GIGA | CYJ77W6L-7000019 — CYJ77W6L-7000046 |
| PJ-CYJ77W6Z | GIGA | CYJ77W6Z-7000003 — CYJ77W6Z-7000016 |
| PJ-CYL77Q6 | GIGA | CYL77Q6-7000001 — CYL77Q6-7000184 |
| PJ-CYL77R6 | GIGA | CYL77R6-7000015 — CYL77R6-7000036 |
| PJ-CYL77T6 | GIGA | CYL77T6-7000008 |
| PJ-CYL77V6 | GIGA | CYL77V6-7000012 — CYL77V6-7001257 |
| PJ-CYL77V6A | GIGA | CYL77V6-7000012 — CYL77V6-7001257 |
| PJ-CYL77V6Z | GIGA | CYL77V6Z-7000023 — CYL77V6Z-7000039 |
| PJ-CYM77Q6 | GIGA | CYM77Q6-7000002 — CYM77Q6-7000071 |
| PJ-CYM77R6 | GIGA | CYM77R6-7000001 — CYM77R6-7000011 |
| PJ-CYM77V6 | GIGA | CYM77V6-7000002 — CYM77V6-7000107 |
| PJ-CYM77V6Z | GIGA | CYM77V6Z-7000002 — CYM77V6Z-7000008 |
| PJ-CYY77Q6J | GIGA | CYY77Q6J-7000005 — CYY77Q6J-7000014 |
| PJ-CYY77S6J | GIGA | CYY77S6J-7000001 — CYY77S6J-7000007 |
| PJ-CYY77V6 | GIGA | CYY77V6-7000004 — CYY77V6-7000073 |
| PJ-CYY77V6J | GIGA | CYY77V6J-7000002 — CYY77V6J-7000122 |
| PJ-CYZ77Q6 | GIGA | CYZ77Q6-7000001 — CYZ77Q6-7000044 |
| PJ-CYZ77Q6J | GIGA | CYZ77Q6J-7000001 — CYZ77Q6J-7000017 |
| PJ-CYZ77S6J | GIGA | CYZ77S6J-7000001 — CYZ77S6J-7000006 |
| PJ-CYZ77V6 | GIGA | CYZ77V6-7000001 — CYZ77V6-7000074 |
| PKG-CXE77X8 | GIGA | CXE77X8-7000003 — CXE77X8-7000316 |
| PKG-CXG77X8 | GIGA | CXG77X8-7000003 — CXG77X8-7000238 |
| PKG-CXM77V8 | GIGA | CXM77V8-7000001 — CXM77V8-7000025 |
| PKG-CXY77Q8J | GIGA | CXY77Q8J-7000001 — CXY77Q8J-7000028 |
| PKG-CXY77S8J | GIGA | CXY77S8J-7000001 — CXY77S8J-7000026 |
| PKG-CXY77V8J | GIGA | CXY77V8J-7000007 — CXY77V8J-7000112 |
| PKG-CXZ77K8 | GIGA | CXZ77K8-7000005 — CXZ77K8-7001528 |
| PKG-CYE77Y8Z | GIGA | CYE77Y8Z-7000003 — CYE77Y8Z-7000028 |
| PKG-CYH77W8 | GIGA | CYH77W8-7000002 — CYH77W8-7000129 |
| PKG-CYJ77W8 | GIGA | CYJ77W8-7000014 — CYJ77W8-7006030 |
| PKG-CYJ77W8A | GIGA | CYJ77W8-7000014 — CYJ77W8-7006030 |
| PKG-CYJ77W8L | GIGA | CYJ77W8L-7000001 — CYJ77W8L-7000051 |
| PKG-CYJ77W8Z | GIGA | CYJ77W8Z-7000001 — CYJ77W8Z-7000067 |
| PKG-CYL77Q8 | GIGA | CYL77Q8-7000005 — CYL77Q8-7000256 |
| PKG-CYL77R8 | GIGA | CYL77R8-7000001 — CYL77R8-7000058 |
| PKG-CYL77T8 | GIGA | CYL77T8-7000001 — CYL77T8-7000017 |
| PKG-CYL77V8 | GIGA | CYL77V8-7000008 — CYL77V8-7004790 |
| PKG-CYL77V8A | GIGA | CYL77V8-7000008 — CYL77V8-7004790 |
| PKG-CYL77V8Z | GIGA | CYL77V8Z-7000002 — CYL77V8Z-7000132 |
| PKG-CYM77Q8 | GIGA | CYM77Q8-7000002 — CYM77Q8-7000215 |
| PKG-CYM77R8 | GIGA | CYM77R8-7000001 — CYM77R8-7000059 |
| PKG-CYM77V8 | GIGA | CYM77V8-7000003 — CYM77V8-7000394 |
| PKG-CYM77V8Z | GIGA | CYM77V8Z-7000001 — CYM77V8Z-7000011 |
| PKG-CYY77Q8J | GIGA | CYY77Q8J-7000001 — CYY77Q8J-7000042 |
| PKG-CYY77S8J | GIGA | CYY77S8J-7000001 — CYY77S8J-7000011 |
| PKG-CYY77V8 | GIGA | CYY77V8-7000002 — CYY77V8-7000219 |
| PKG-CYY77V8J | GIGA | CYY77V8J-7000002 — CYY77V8J-7000594 |
| PKG-CYY77V8Z | GIGA | CYY77V8Z-7000002 — CYY77V8Z-7000019 |
| PKG-CYZ77Q8 | GIGA | CYZ77Q8-7000003 — CYZ77Q8-7000286 |
| PKG-CYZ77Q8J | GIGA | CYZ77Q8J-7000001 — CYZ77Q8J-7000060 |
| PKG-CYZ77S8J | GIGA | CYZ77S8J-7000001 — CYZ77S8J-7000021 |
| PKG-CYZ77V8 | GIGA | CYZ77V8-7000004 — CYZ77V8-7000309 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型トラック用エンジンにおいて、オイルサーモバルブの開弁温度設定が不適切なため、ピストンの温度が高くなり、ピストンに過大な負荷がかかり、亀裂が生じるものがある。そのため、そのまま使用を続けると亀裂が進行し、ピストンに穴が開き、エンジン出力の低下及び白煙を排出し、最悪の場合、走行不能に至るおそれがある。
改善措置
①全車両、車両走行データを確認し、負荷及びその頻度の高い車両はピストンを点検し、亀裂のあるものはエンジンを良品に交換する。また、ブローバイガス流量を点検し、流量が多いものはエンジンを良品に交換する。 ②平成１７年排出ガス規制対応車両については、サーモスタット、オイルサーモバルブを対策品に交換する。
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=3003678