The issue
On certain motorhomes equipped with a Cummins engine, improper installation of a boss plug during engine assembly could create stresses in the cylinder block casting. These stresses could eventually create open cracks in the cylinder block or result in less than adequate clamping pressure around the plug. When the plug loses it's clamping pressure, it will loosen from the cavity, causing an oil leak. This leakage of oil near the exhaust manifold and turbocharger has the potential to ignite and cause a fire in the engine compartment. Correction: Dealers will install a steel cup plug boss cap which is attached over the boss/cup plug location with an industrial sealant.
Description (français)
Sur certaines autocaravanes équipés d'un moteur Cummins, un bouchon de bossage mal installé pendant le montage du moteur pourrait causer des contraintes dans le bloc moteur. Celles ci pourraient éventuellement provoquer des fissures ouvertes dans le bloc cylindres ou faire diminuer la pression de serrage autour du bouchon à un seuil inférieur au niveau adéquat. Lorsque le bouchon perd sa pression de serrage, il se dévisse, ce qui provoque une fuite d'huile. Cette huile, près du collecteur d'échappement et du turbocompresseur, pourrait s'enflammer et provoquer un incendie dans le compartiment moteur. Correction : Les concessionnaires devront poser un bouchon de bossage en acier sur lequel on aura appliqué du scellant industriel.
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada · official text, unchanged
Vehicles covered
| Make and model | Model years |
|---|---|
| Beaver SANTIAM | 2004 |
| Holiday Rambler Ambassador | 2004 |
| Holiday Rambler Endeavor | 2004 |
| Holiday Rambler Imperial | 2005 |
| Monaco CAMELOT | 2005 |
| Monaco DIPLOMAT | 2004 |
| Monaco DYNASTY | 2005 |
| Monaco KNIGHT | 2004 |
| Monaco WINDSOR | 2004, 2005 |
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Holiday Rambler Ambassador | 2004 | 3 | 4 |
| Holiday Rambler Imperial | 2005 | 2 | 3 |