Diesel Exhaust Fluid Engine Coolant Control Valve - Removal
REMOVAL
1. Disconnect both negative battery cables.
2. Drain the cooling system Service and Repair.
3. Disconnect the coolant lines (1 and 2) going to Diesel Exhaust Fluid (DEF) tank.
4. Remove push pin (4) and unclip coolant lines bracket (3) from frame rail.
5. Position a transmission jack under DEF tank.
6. Remove bolts (1) and partially lower the DEF tank (2).
7. Disconnect the DEF engine coolant control valve harness connector (1).
8. Disconnect the coolant supply (1) and return lines (2) from DEF tank.
9. Disconnect the coolant lines (5) at routing clip (6).
10. Remove bolt (1) and the DEF engine coolant control valve assembly (2).