2016 NEWMAR VENTANA Engine Problems

Driving west on Interstate 80 in Iowa heading to South Dakota, when smoke started to appear in rear of motor home outside . Pulled over to find that diesel fuel was spraying all over the motor, very fortunate that it did not catch on fire. It is a Cummins 8.9 diesel motor # 73844606 . Had it towed to a licensed repair shop and the mechanic found that the # 1 fuel injector line had a hair line crack causing the fuel leak. Contacted Cummins on this issue and they said there is no recall on this problem , because there is not enough engines having this problem. I found on a RV Forum that this issue has happened to other RV owners. The forum also stated that there are other injector lines on Cummins diesel motors that have failed. The new injector part has a bracket on it to...

The SCR/DPF/DEF emissions control system is faulty and results in the vehicle becoming undrivable at unpredictable instances when no actual fault or deficiency exists. This may result in the driver becoming stranded in area with no cell phone signal and during times of harsh weather. It may also leave motorists stranded in unsafe locations with insufficient room to park safely and no capability to move to a safe location. This is a result of the system “de-rating” due to faulty sensors or DEF delivery systems or a variety of other causes. Because the system will derate the engine when the sensors indicate a low DEF condition when the DEF tank is sufficiently full, it is impossible for the motorists to predict these failures and subsequent strandings. It is also worthy of note that in the case of diesel motorhomes, these are not professional drivers, they are often older, and their...

On Jan 2, 2021, I filed NHTSA complaint #11386115. To date I have heard nothing other than an acknowledgement of receipt of the complaint. I would like to point out that this problem is on-going, increasing in severity and number of occurrences, and can easily be considered a life safety issue. As I’m sure you are aware, vehicles conveying human beings are becoming randomly and unpredictability stranded due to faulty sensors on otherwise properly functioning emission systems. This problem is easily resolvable with a simple policy modification, but because it involves emissions, and by extension theoretically the environment (although in this case this is not accurate), there is no apparent willingness to address the problem. While I’m sure you have had many complaints, you are probably hearing from a very small percentage of the people actually affected by this issue. However a simple google search will literally reveal many thousands...