Assembly, Diesel Exhaust Fluid Pump: Installation

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Install the two Diesel Exhaust Fluid (DEF) pump seal (1).
If necessary, install the three DEF pump damper (2).

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If necessary, install the three sleeves (1) into damper (2).
Clean the O-ring sealing surfaces.

Fig 1: DEF Pump Screws Tightening Sequence
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Install the DEF pump into tank and tighten screws finger tight.

Using the tightening sequence shown in illustration, tighten screws to:

Using the tightening sequence shown in illustration, tighten screws to 6 N.m (53 in. lbs.).

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Connect the DEF pump supply line (4).
Connect the DEF pump wire harness connector (3).

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Install the DEF tank shield (1). Tighten the bolts (2) to 15 N.m (11 ft. lbs.).
Remove the support and lower the vehicle.
Fill the DEF tank with clean DEF fluid.
Connect the negative battery cable.
NOTE:
Whenever the DEF pump is being replaced the learned values need to be reset.
Using the scan tool, perform Clear the DEF Pump Learned Values function found under MISCELLANEOUS FUNCTIONS.
Using a scan tool, perform DEF Tank Fluid Level Reset function found under MISCELLANEOUS FUNCTIONS.