OEM Dodge Ram 1500 Van A/C Hose

Dodge Ram 1500 Van A/C Hose Parts and Q&A

• Liquid Line
  5003113AB
  Q: How to replace the A/C Hose (liquid line) on Dodge Ram 1500 Van?

  A:

  Before changing the liquid hose/line, confirm there are no sharp or tightly twisted bends in the refrigerant lines, since these can harm the air conditioning; use as little turn in the hose as needed and try to keep the flexible hose refrigerant lines at least 3 inches away from the exhaust manifold. The first step is to cut off and remove the battery negative cable before getting the refrigerant from the system. Lift out the screw joining the liquid line to the filter-drier and remove the fitting, placing plugs or tape on any refrigerant line fittings you open. After that, remove the radiator grille, unscrew the screw attaching the block fitting to the condenser's liquid line and detach the fitting, placing plugs or tape over all refrigerant fittings in the open positions. Take out the liquid line from the engine area. For installation, take off the tape or plugs from the liquid line block fitting and the outlet of the condenser, set up the liquid line on the condenser outlet and hold it firmly in place with a screw tightened to 22 Nm (200 in. lbs.). Mount the grille, remove the tape or plugs from both the liquid line block fitting and the filter-drier inlet, join the liquid line to the filter-drier and secure everything with a screw fastened to 13.5 Nm (120 in. lbs.). After that, reconnect the negative wire of the battery, remove all the refrigerant and pump in new refrigerant.
• Suction Line
  5003114AB
  Q: How are the underbody plumbing lines and A/C Hose serviced equipped with the optional rear heater-A/C unit on Dodge Ram 1500 Van?

  A:

  Only models with the optional rear heater-A/C get underbody plumbing lines and, while it's possible to fix them one at a time, services require the removal of every underbody line from the vehicle together. Sharp twists or bends in the underbody pipes of the HVAC system can lower the performance of the heating and cooling systems. This results in slower flows and higher pressures in the air conditioning piping during AC use and elevated temperature coolant fluid in the heater piping when the engine runs. Before removal, unhook and isolate the battery's negative cable, remove the refrigerant and flush the engine coolant tank. Remove the underbody liquid line from the liquid line extension and the underbody suction line from the suction line jumper and remember to keep all opened refrigerant fittings in the engine compartment sealed with tape or a plug. Take the heater supply and return hoses out of the underbody combination heater line, lift the engine cover found in the passenger area, raise and balance the vehicle and pull off the front park brake release cable routing clip from the underbody suction line. Crawl underneath the vehicle and take off the flare nuts on both the underbody liquid and suction lines from the threaded openings of the rear heater-A/C unit. Then, break past the hoses from the rear heater-A/C unit that supply and return to the heater. Pull out the screw beneath the underbody plumbing clamp on the front floor and the screw attaching the underbody plumbing clamp to the front floor reinforcement, then remove the screws holding the underbody refrigerant line clamps to the underbody reinforcement at the side panel. Place the underbody liquid plumbing bundle at the side panel to reinforcement and secure it privately with two loosely installed clamp mounting screws. Attach the heater supply and return lines to the rear heater-A/C unit heater lines, after that remove the blockage from the suction line fittings and link the flare nut on the underbody suction line to the screwed fitting on the rear heater-A/C unit suction line, tightening to 47 Nm (420 in. lbs.). Take the tape or plugs off the liquid line fittings and link the flare nut at the bottom of the car with the threaded fitting on the rear heater-A/C unit's liquid line, making sure to tighten the flare nut on the underbody to 27 Nm (244 in. lbs.). All underbody plumbing bundle mounts should be attached with their hardware and screws tightened to 6.7 Nm and 3.3 Nm, respectively. Reattach the front park brake release clip on the underbody suction line, bring down the vehicle and join the heater supply and return hoses to the underbody combination heater line coming from the engine compartment. Take off the piece of tape or plugs from under the refrigerant line fittings in front of the underbody liquid and suction lines, connect the underbody liquid line to the liquid line extension and the underbody suction line to the suction line jumper. With that completed, replace the engine cover inside the passenger compartment. After that, add the negative cable to the battery, fill the coolant system, drain the refrigerant and recharge the refrigerant.