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
+ Power supply system and production of the fulfilled gases
- System of electric equipment of the engine
   General information
   Start of the engine from an auxiliary source
   Check of a state and replacement of wires of the battery
   Removal and installation of the battery
   System of ignition - the general information
   Check of serviceability of functioning of system of ignition
   Check of serviceability and replacement of the coil of ignition
   Check of serviceability and replacement of the sensor of position of the camshaft
   Removal and installation of the distributor
   System of a charge - the general information and precautionary measures
   Check of serviceability of functioning of system of a charge
   Removal and installation of the generator
   System of start
   Diagnostics of malfunctions of a starter without its removal from the car
   Removal and installation of a starter
   Removal and installation of the traction relay (4.0 l engines)
+ 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



System of ignition - the general information

The electronic system applied on these cars of transistor type is capable to develop much stronger currents, than made by systems of ignition of usual type. At service of system observe special precautionary measures.

All models are equipped with the computerized system of ignition which part the ignition coil, sensors of provision of distributive and cranked shaft and the Module of management (RSM) are. RSM exercises control of installation of the moment (an advancing corner) of ignition, characteristics of a spark and advancing. Installation of a corner of an advancing of ignition is not subject to adjustment and change of position of the distributor does not lead to its change.

On the 4.0 l engines position of the distributor is fixed unambiguously at the expense of the directing groove on its case. Clamping the bolt of fastening of the distributor at the correct installation passes through this groove. On models the fixing collar clamped by a bolt of 5.2 l allows to rotate freely the distributor, however it does not lead to change of installation of a corner of an advancing of ignition. Do not try to modify an ignition advancing corner, rotating the distributor.

The distributor drive (its conducted gear wheel), including the runner, is carried out from the camshaft. The sensor of position of the camshaft is located in the distributor and carries out transfer on the processor of the signals which are responsible for synchronization of supply of fuel in cylinders.

Earlier the sensor of position of the camshaft was mentioned in lists of spare parts of dealer offices of Chrysler as assembly of a plate. Some models are equipped with the independent sensor of the camshaft which easily is removed from the distributor without extraction of the last of the car. On other models the sensors of the camshaft of dependent type demanding removal of the distributor are installed.

The computerized system of ignition provides complete control of installation of a corner of an advancing of ignition by definition of optimum current value on the basis of the analysis of information obtained by the microprocessor from sensors of speed of the movement of the car (VSS), temperature of a cooler, the provision of a butterfly valve (TPS) and absolute pressure in the pipeline (MAR). The corner of an advancing of ignition changes during an engine warming up, during its work on single turns and normal functioning of the warmed engine. Control of installation of a corner of an advancing of ignition is exercised by the module of management (RSM). Also the ignition lock, the battery, the coil, the distributor, spark plugs and candle wires are a part of such electronic system of ignition.

On the issue of acquisition of replaceable components and assemblies of the distributor address to dealer offices of firm. Check of serviceability of the sensor of provision of a bent shaft is described in the Head Sistemy of decrease in toxicity of the fulfilled gases and engine management.