Jeep Grand Cherokee

1993-1999 of release

Repair and operation of the car



Jeep Grand Cherokee
+ Cars of the Jeep Grand Cherokee brand
+ Settings and routine maintenance
+ Line six-cylinder engine
+ V8 engine
+ Procedures of the general and capital repairs of the engine
- Cooling systems, heating and air conditioning
   General information
   Antifreeze - the general information
   Check of functioning and replacement of the thermostat
   Check of serviceability and replacement of the fan of the cooling system and coupling of its coupling
   Check of functioning and replacement of the block of the sensor of temperature of a cooler
   Removal and installation of a radiator and broad tank of the cooling system
   Check of functioning of the water pump
   Removal and installation of the water pump
   Check of serviceability of an electric contour and replacement of components of the motor of the fan of a heater and conditioner of air
   Removal and installation of the block of the fan of a heater
   Removal and installation of assembly of management of a heater and conditioner of air
   Removal and installation of the heat exchanger of a heater
   Check of serviceability and service of systems of heating and air conditioning
   Diagnostics of system of automatic control of temperature (automatic telephone exchange) without its removal from the car
   Removal and installation of the accumulator (store) of the air conditioning system
   Removal and installation of the compressor of the air conditioning system
   Removal and installation of the condenser of the air conditioning system
   Removal and installation of a tube of the calibrated jet
   Removal and installation of the evaporator of air conditioning system
+ A power supply system and production of the fulfilled gases
+ System of electric equipment of the engine
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of gear shifting
+ Automatic transmission
+ Transfer case
+ Coupling and transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ System of onboard electric equipment
+ Governing bodies and methods of operation



Removal and installation of a tube of the calibrated jet

General information

Assembly of a tube of the calibrated jet represents the restrictive block dividing the low pressure and high-pressure filled with liquid coolant half of system. The block regulates a stream of the coolant coming to the evaporator heat exchanger.

Temperature of the evaporator is controlled by tracking of pressure in its heat exchanger by means of the electric sensor switch operated by pressure. The switch operates functioning of the compressor, supporting by that pressure in the evaporator in the set limits.

If at pressure in system by means of the manometer it is established that in a high-pressure part pressure is very high whereas in a low pressure part strong depression (vacuum) takes place, the calibrated jet is hammered and the tube with it should be replaced.

Replacement

Undocking of the connections of refrigerator lines of the air conditioning system equipped with spring locks requires the special tool (see the Section Removal and installation of the heat exchanger of a heater).


 PERFORMANCE ORDER

  1. Disconnect a negative wire from the battery.
  2. By means of the special tool (see the Section Removal and installation of the heat exchanger of a heater) disconnect from the evaporator heat exchanger on a partition of a motive compartment the liquid line going to it from the condenser.
  3. Disconnect the second end of the liquid line from the condenser and remove it from the car.

The tube of the calibrated jet is an integral part of this liquid line and they are replaced with the uniform block.


The tube of the calibrated jet (shooter) is an integral part of the liquid line going to the evaporator.

  1. Zakuporte of an opening in system blocks immediately after removal of the line in order to avoid hit in them of moisture and dirt.
  2. Establish into place assembly of the line with a tube of the calibrated jet.

In the butt connections of lines of system equipped with spring locks at assembly the sealing rings suitable for the use in contact with oil like R-134a have to be established.

  1. In the same dealer office where discharged system make its depletion, charging and check on leaks.