Home » 6.7L Cummins » 6.7L Cummins Exhaust System – Aftertreatment Diesel Particulate Filter Differential Pressure Sensor Tubes – Clean and Inspect for Reuse

6.7L Cummins Exhaust System – Aftertreatment Diesel Particulate Filter Differential Pressure Sensor Tubes – Clean and Inspect for Reuse

Inspect the inside of the tube.
If the tube is partially clogged, saturate the inside of the tube with a mineral based solvent, or equivalent.
Carefully clean debris from the mouth of the tube. Make sure to not damage the tube.
If the tube is fully clogged or otherwise unable to be cleaned, the tube must be replaced.
Clean the tube with safety solvent.
Dry the tube with compressed air.
Check the tube for cracks and thread damage. Replace the tube if damage is found.

Inspect the inside of the threaded bosses on the aftertreatment canister.
Clean debris from the inside of the threaded bosses, while being careful to not damage the threads.