Jeep Grand Cherokee

1993-1999 of release

Repair and car operation



Jeep Grand Cherokee
+ Cars of mark Jeep Grand Cherokee
+ Options and routine maintenance
+ Рядный the six-cylinder engine
+ Engine V8
+ Procedure of the general and engine major repairs
+ Systems of cooling, heating and air conditioning
+ The power supply system and release of the fulfilled gases
- System of an electric equipment of the engine
   The general information
   Start of the engine from an auxiliary source
   Check of a condition and replacement of wires of the battery
   Removal and battery installation
   Ignition system - 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 gauge of position of a camshaft
   Removal and distributor installation
   Charge system - the general information and safety measures
   Check of serviceability of functioning of system of a charge
   Removal and generator installation
   Start system
   Diagnostics of malfunctions of a starter without its removal from the car
   Removal and starter installation
   Removal and installation of the traction relay (engines in volume 4.0)
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of a gear change
+ Automatic transmission
+ Distributing box
+ Coupling and трансмиссионная a line
+ Brake system
+ Suspension bracket and steering
+ Body
+ System of an onboard electric equipment
+ Controls and operation receptions

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Ignition system - the general information

Applied on the given cars of transistor type the electronic system is capable to develop much stronger currents, than ignitions of usual type made by systems. At system service observe special safety measures.

All models are equipped by the computerised system of ignition into which structure enter the ignition coil, gauges of position of distributive and cranked shaft and the management Module (РСМ). РСМ carries out the control over moment installation (an advancing corner) ignitions, spark and advancing characteristics. Installation of a corner of an advancing of ignition is not subject to adjustment also change of position of the distributor to its change does not conduct.

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

Distributor drive (its conducted gear wheel), including бегунок, it is carried out from a camshaft. The gauge of position of a camshaft is located in the distributor and carries out transfer on the processor of the signals which are responsible for synchronisation of giving of fuel in cylinders.

Earlier the gauge of position of a camshaft was mentioned in lists of spare parts of dealer branches of firm Chrysler as plate assemblage. Some models are equipped by the independent gauge of a camshaft which easily acts in film from the distributor without extraction of last of the car. On other models gauges of a camshaft of the dependent type, demanding removals of the distributor are established.

The computerised system of ignition provides a 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 the information received by the microprocessor from gauges of speed of movement of the car (VSS), temperature of a cooler, position throttle заслонки (TPS) and absolute pressure in the pipeline (МАР). The corner of an advancing of ignition changes during an engine warming up, at its work on single turns and normal functioning разогретого the engine. Management of installation of a corner of an advancing of ignition carries out the management module (РСМ). The structure of such electronic system of ignition includes also the ignition lock, the battery, the coil, the distributor, spark plugs and candle wires.

Of acquisition of replaceable components and distributor assemblages address in dealer branches of firm. Check of serviceability of the gauge of position of a cranked shaft is described in the Head of System of decrease in toxicity of the fulfilled gases and engine management.