Rear Auxiliary Heater Inlet Line

REMOVAL
1. Drain the cooling system.
2. Remove the quarter trim panel access cover.







3. Disconnect the heater inlet hose coupling.







4. Remove the auxiliary A/C line grommet retainer.
1 Remove the bolts.
2 Remove the retainer.
5. Remove the spare tire.
6. Turn the air suspension switch off, if equipped.
7. Raise and support the vehicle.







8. Lower the muffler heat shield.
1 Remove the two front bolts.
2 Lower the heat shield.







9. Remove the four line brackets.
1 Remove the nuts.
2 Remove the bracket by inserting a screwdriver in the bracket slot and twisting.

CAUTION: Pull the bracket off the stud before attempting to pry it off the lines to prevent component damage.







10. Cut the line in the positions shown.
11. Remove and discard the cut sections.

INSTALLATION







1. Install the heater inlet line.
- Install the end with the green tape over the axle between the frame and the body.







2. Connect the heater inlet line to the front auxiliary line.
1 Connect the inlet line.
2 Loosely install the nut.







3. Install the heater inlet line.
- Install the end with the blue tape between the frame crossmember and the floor pan.







4. Connect the two heater inlet lines.
1 Connect the fittings.
2 Loosely install the nut.







5. Install the heater inlet line.
- Install the end with the red tape between the frame and the body.







6. Connect the two heater inlet lines.
1 Connect the fittings.
2 Loosely install the nut.







7. Install the heater inlet line.
- Install the end with the green tape through the floor opening.







8. Connect the two heater inlet lines.
1 Connect the fittings.
2 Loosely install the nut.







9. Tighten the four peanut fittings.







10. Install the line brackets.
1 Position the bracket.
2 Install the nut.
- Snap the line into the bracket.

NOTE: The bracket must be positioned equally between the white location marks on the line.







11. Install the muffler heat shield.
1 Position the shield.
2 Install the nuts.
12. Lower the vehicle.
13. Turn on the air suspension switch, if equipped.







14. Install the grommet seal and retainer.

NOTE: Verify that the lines are entering through the center of the floor opening and that the retainer locating marks are positioned correctly.







15. Connect the heater inlet hose coupling.
16. Install the quarter trim access panel.
17. Install the spare tire.
18. Fill the cooling system.