JULY 2022 DPF filter was throwing check engine light. Took to dealer to get diagnosed, part was ordered and the DPF was replaced August 19th 2022. Started to get headaches in vehicle while driving it. OCT 9th ended up in hospital after driving vehicle and was diagnosed with CARBON MONOXIDE POISONING. Experienced symptoms of losing consciousness, worst headache I've ever had, nausea for 5 hours, loss of feeling in body and seizing of body. Took truck to dealer to get inspected twice and nothing was found to be wrong with it. NOV 10th Took truck on another road trip and was having similar symptoms as before however had more chest pain this time so went back to hospital. Took truck back to dealer to have inspected again and was told that it was fine. Nov 18th took truck on another road trip and within 20 mins of driving had another horrible headache. Pulled over and needed to get air and ended up driving truck 4 hours home with windows and sunroof open to avoid getting carbon monoxide poisoning again. I have been ill since August and that is due to diesel and carbon monoxide poisoning every single time I drive the vehicle which is daily. The truck has been now at the dealership for 70 days without any update or improvement in the case.

- Mound , MN, USA

My truck will not start randomly. The truck will crank but won't fire. If I wait a while it will eventually start. I took it to the dealer and was told that they could not recreate it. No check engine light on and no error codes noted.

- Shortsville, NY, USA

6.6L gas truck would not start. Forums ive visited state this is a known problem with the ECM. After approx 30mins it started. However before that it sputtered out every time I would try to start it. It appears to be an intermittent problem. It ran fine once it eventually did start. Also auto start wouldn't engage when this problem was occurring.

- Shady Spring, WV, USA