Grand Caravan V6-4.0L (2008)
NOTE: Illustration shown with rear body cradle removed for clarity.
1. Disconnect and isolate the negative battery cable.
2. Recover the refrigerant from the refrigerant systemSee: Service and Repair/Procedures/Refrigerant System Recovery.
3. Drain the engine cooling systemSee: Engine, Cooling and Exhaust/Cooling System/Service and Repair.
4. Raise and support the vehicle.
5. Remove the nut (1) that secures the underbody refrigerant extension lines (3) and the sealing plate (4) to the rear A/C expansion valve (1) which
extends through the floor panel behind the right rear wheel housing.
6. Disconnect the underbody refrigerant extension lines from the rear A/C expansion valve and remove and discard the O-ring seals.
7. Install plugs in, or tape over the opened underbody refrigerant line fittings and rear expansion valve ports.
CAUTION: DO NOT apply excessive force on underbody heater lines or rear heater hose quick connect fittings when disconnecting the
connections. Excessive force may damage or deform the fittings and or lines, causing an engine coolant leak.
8. Disconnect the underbody heater lines (4) from the rear heater core tubes (1) which extend through the rear floor panel in front of the right rear
wheel housing by releasing the insert (2) in each rear quick connect fitting (3) and carefully pulling downward on the fittings while using a slight
twisting motion.
9. Lower the underbody heater lines and drain any residual coolant from the lines into a suitable container.
