How to fix Diesel Particulate Filter (DPF) not functioning properly in Case IH FARMALL 40A?
- AAlexander FranklinAug 31, 2025
If the Diesel Particulate Filter (DPF) in your Case IH Tractor is not functioning properly, it could be due to excessive soot build-up. Try starting the regeneration of the DPF system. If that doesn't work, the Engine Control Unit (ECU) might not be functioning properly, and you should contact an authorized dealer for electronic diagnosis.