Dodge Journey: Description, Operation
DESCRIPTION
The A/C refrigerant lines and hoses are used to carry the refrigerant between the various A/C system components. The refrigerant lines and hoses for the R-134a A/C system consist of a barrier-hose design with a nylon tube sandwiched between rubber layers. The nylon tube helps to contain the R-134a refrigerant, which has a small molecular structure. The ends of the refrigerant lines are made from lightweight aluminum and brazed fittings.
Any kinks or sharp bends in the refrigerant lines and hoses will reduce the capacity of the entire A/C system and can reduce the flow of refrigerant within the system.
OPERATION
High pressures are produced in a refrigerant system when the A/C compressor is operating. Extreme care must be exercised to make sure that each of the refrigerant system connections is pressure-tight and leak free. It is a good practice to inspect all flexible hose refrigerant lines at least once a year to make sure they are in good condition and properly routed.
Depending on vehicle, model and market application, refrigerant lines are connected to each other or other A/C system components with block-type or quick-connect type fittings. To ensure the integrity of the refrigerant system, O-rings and/or gaskets may be used to seal the refrigerant system connections.
The refrigerant lines and hoses cannot be repaired and must be replaced if leaking or damaged.
Plumbing, front
...
Warning, Caution
WARNING
WARNING: The A/C system contains refrigerant under high pressure.
Repairs should
only be performed by qualified service personnel. Serious or fatal
injury
may result from ...
See also:
Relay, heater unit
DESCRIPTION
Fig. 320: Standard ISO-Type Relay
Three relays (1) are used for the electric positive temperature coefficient (PTC)
heater system when equipped
with the 2.0L diesel engine. The rela ...
Diagnosis and testing
BATTERY CABLES
A voltage drop test will determine if there is excessive resistance in the
battery cable terminal connections or
the battery cable. If excessive resistance is found in the battery c ...
Draincock, radiator
Removal
DRAINCOCK
Fig. 65: DRAINCOCK & RADIATOR TANK
CAUTION: Use of pliers on draincock is not recommended. Damage may
occur to
radiator or draincock.
NOTE: It is no ...