Inspect DEF pump for noise

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

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Fixes List

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SUGGEST Fix

Inspect DEF pump for noise

hiaibox
10 months ago
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Turn on the truck and then turn it off. You should hear pump noise for about 30 seconds. Pump noise means its getting signal to run and most likely your electrical wiring to pump is in good conditions. DEF pump will kick out if there is a blockage