Complaint 2250079

Complaint Summary

ENGINE

Owner Narrative

The truck has a CEL P2459. The unit was taken back to the dealer on June 15, 2026, and they diagnosed an aftermarket air cleaner and regeneration. The CEL continued to display P2459, and I returned the truck to the dealer on 9/23. The dealer stated I had a defective air cleaner housing and was willing to pay 80% of the cost. They also said the restriction likely caused the DPF filter to plug because it caused excessive DPF generation. I believe this defective air housing may be on multiple units since these are likely purchased in batches. Ram should replace all air cleaner housings from the manufacturer batch related to my unit. They should also cover any parts caused by this defective air cleaner housing. Ram should cover the plugged Diesel Particulate Filter and the air cleaner housing.

Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.