Jeep Grand Cherokee

1993-1999 of release

Repair and car operation



Jeep Grandee Cheroki
+ Jeep Grand Cherokee brand Cars
+ Settings and routine maintenance
+ Ryadny six-cylinder engine
+ V8 Engine
+ Procedures of the general and major maintenance of the engine
- Systems of cooling, heating and air conditioning
   General information
   Antifreeze - the general information
   Check of functioning and thermostat replacement
   Check of serviceability and replacement of the fan of system of cooling 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 system of cooling
   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 air conditioner
   Removal and installation of the block of the fan of a heater
   Removal and installation of assembly of management by a heater and air conditioner
   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 in temperature (automatic telephone exchange) without its removal from the car
   Removal and installation of the accumulator (store) of central air of air
   Removal and installation of the compressor of central air of air
   Removal and installation of the condenser of central air of air
   Removal and installation of a tube of the calibrated jet
   Removal and installation of the evaporator of central air
+ the 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 operation receptions
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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 low-pressure head and high-pressure head half filled with a liquid coolant of system. The block regulates a stream of the coolant arriving in the heat exchanger of the evaporator.

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

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

Replacement

For undocking of the connections of refrigerator lines of central air of air equipped with spring locks the special tool (is required see. 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 an impellent 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. To Zakuporta of an opening in system blocks immediately after line removal in order to avoid hit in them of moisture and dirt.
  2. Establish into place line assembly 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 to oil of the R-134a type should be established.

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