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



Check of functioning of the water pump

The failure of the water pump can be the reason of the serious damages of the engine connected with its overheat.

There are several ways of check of functioning of the water pump without its removal from the engine. If the pump is faulty, it should be replaced new or restored.

Water pumps are equipped control or ventilating with openings. In case of failure of an epiploon of the pump from an opening the cooler begins to exude. In most cases to find and examine a control opening which is in the lower part of the pump the small lamp is required.

At emergence of malfunction of an epiploon of a shaft of the water pump from its control opening the cooler begins to exude.

If bearings of shaft of the water pump are faulty, they can publish howl which will proceed from a forward part of a motive compartment during the operation of the engine. Wear of a shaft is shown in the form of a beating of a pulley of the water pump up-down. Do not confuse howl, published by bearings with the squeal taking place when slipping a driving belt.

Grasp a flange of the pump try to shake its shaft for identification of signs of its side play up-down.

There is a probability of an exit of the pump out of operation when it is not followed by characteristic signs (howl also infiltration of a cooler through a control opening). Sometimes the corrosion of a back part of shovels of a rotor of the pump leading at a certain stage of the development to inadmissible decrease in efficiency of functioning of the pump takes place. The only way to check such assumption is removal of the pump and a careful research of its state.