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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Check of functioning and replacement of the block of the sensor of temperature of a cooler

Before starting performance of procedure wait complete cooling of the engine.

The system of measurement of temperature of a cooler consists of the measuring instrument of temperature entering into a combination of devices and the block of the sensor of temperature, established on the engine. Some models are equipped more than one sensor, however for indication of temperature uses only one of them, usually equipped with the single-wire electric socket. Sensors of temperature of the cooler, transmitting signals on the processor are usually equipped with two wires.

Location of the sensor of temperature of a cooler on the 6-cylinder engine.

Location of the sensor of temperature of a cooler on the V8 engine (the second sensor located more to the right hands over information on the processor).

In case the measuring instrument fixes an overheat, check cooler level, then make sure of reliability of fastening of contacts of electroconducting between a measuring instrument and the switch. Check a condition of safety locks.

At the included ignition and a turned starter the control lamp should burn (check of serviceability of a lamp).

If the lamp does not burn, or it fused, or contour break takes place. Check a contour, having earthed a wire between a lamp and the sensor at the included ignition (but without starting for safety the engine). If the arrow of a measuring instrument deviates thus on all range of a scale, or the control lamp lights up, replace the sensor.

Right after engine start the control lamp should go out and remain switched off before emergence of an overheat of the engine. Refusal of switching off of a lamp can occur owing to a zakorachivaniye on mass of a wire between a lamp and the sensor, malfunctions of the sensor or failure of the lock of ignition. Make sure that the system is filled with a cooler of demanded type. The excessive quantity of water in a mix can be at the bottom of decrease in a boiling point of a cooler to value of the sensor insufficient for activation.

If the block of the sensor is subject to replacement, simply unscrew it from the engine and screw on its place the new. A carving part of the new sensor grease with hermetic. Before starting removal of the defective sensor make sure that the engine completely cooled down. At a sensor vyvinchivaniye inevitably there will be insignificant losses of a cooler - be ready to collecting spilled liquid. After installation of the new block of the sensor check cooler level.