How to Reset an Exhaust Fluid System Fault on a Ford Diesel Truck? (Step-by-Step)
Updated: Jan 8
Exhaust Fluid Systems (DEF) are designed to reduce emissions in diesel engines by breaking down harmful nitrogen oxides (NOx) into harmless water and nitrogen.
However, if there is a fault in the DEF system, it can cause problems with the engine and result in a warning light on the dashboard.
To reset an exhaust fluid system fault on a Ford diesel truck you can use an OBD scanner or you can disconnect the battery for a few minutes to reset the fault.
In this article, we will explain what causes DEF pump failure and how to reset an exhaust fluid system fault on a Ford diesel truck.