Inspect DEF pump filter

Inspections List

Inspect DEF level Inspect DEF pump for noise Inspect for DEF leak Inspect DEF pump filter Inspect DEF pump outlet line Inspect pump inlet DEF line Inspect DEF pump inlet line to DEF tank Inspect Doser Valve

SUGGEST INSPECTION

Fixes List

How to replace DEF pump filter

SUGGEST Fix

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Inspect DEF pump filter

hiaibox
9 months ago
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Replace DEF filter using 1 1/16 socket For testing purposes, remove filter, put the cover back, Disconnect doser valve def line at doser to avoid dirt clog at doser tip. Run truck at higher Rpm for 7 mins Shut off truck then turn it back on. Inspect if faults still exists. Recommended Def filter replacement every 120-150k miles