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
- Systems of decrease in toxicity of the fulfilled gases and engine management
   The general information
   System of multiitem injection of fuel (MPFI) and information gauges - the description
   Removal and installation of the electronic module of management (РСМ)
   The description of a principle of action of system of self-diagnostics and procedure of reading of codes of malfunctions
   Information gauges
   System of operated ventilation картера (PCV)
   System recycling the fulfilled gases (EGR)
   System of catching of steams of fuel (EVAP)
   The Katalitichesky converter
+ 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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The general information

In order to avoid pollution of atmosphere by products of incomplete combustion and evaporations, and also for the purpose of maintenance at high level of an overall performance of the engine and reduction of the expense of fuel modern cars are equipped with systems of decrease in toxicity of the fulfilled gases. The following concerns their number:

  • System of operated ventilation картера (PCV)
  • System of catching of steams of fuel (EVAP)
  • System recycling the fulfilled gases (EGR)
  • The oxygen gauge (О2)
  • The Katalitichesky converter (TWC)
  • The electronic module of management (РСМ) with information gauges

The general descriptions of a design and principle of action of the listed systems are included in Sections of the given Chapter, and also procedures of check of their condition and the functioning lying within qualification of the average mechanic-fan.

Before coming to conclusion about refusal of system of decrease in toxicity of the fulfilled gases carefully check up serviceability of power supply systems and ignition. Diagnostics of systems of decrease in toxicity some of devices demands application of the special equipment and tools, and also presence of experience of carrying out of such works. If during performance of procedures of service there are difficulties or there is a necessity of use of the special equipment, address for consultation in dealer branch. Easing of fastening or breakage of electroconducting and the hoses, therefore the given checks appears the most widespread cause of failures of systems of decrease in toxicity should be made first of all (illustrations see more low).

However, told above at all does not mean that repair and service of components of systems of decrease in toxicity represent extremely difficult problem. You can own forces, with application of a usual set of the metalwork and adjusting tool to execute many of checks and procedures of routine maintenance of components of system in house conditions.

As on primary service of systems of decrease in toxicity of the fulfilled gases firm-manufacturer guarantee certificates extend, consult about their conditions with the representative of dealer branch on sale of cars.

The scheme of connection of vacuum components of system of decrease in toxicity of the fulfilled gases of models with engines of 4.0 l 1993 and 1994 вып.

The scheme of connection of vacuum components of system of decrease in toxicity of the fulfilled gases of models with engines of 5.2 l 1993 and 1994 вып.

The scheme of connection of vacuum components of system of decrease in toxicity of the fulfilled gases of models with engines of 1995 of 4.0 l вып. (Not the Californian models)

The scheme of connection of vacuum components of system of decrease in toxicity of the fulfilled gases of models with engines of 1995 of 4.0 l вып. (The Californian models)

The scheme of connection of vacuum components of system of decrease in toxicity of the fulfilled gases of models with engines of 1995 of 5.2 l вып.

It is necessary to give special attention to observance of special safety measures. It is necessary to notice that illustrations to many systems can differ from state of affairs really taking place on your car a little. Such divergences constantly brought manufacturers of cars of updating within the limits of one model speak.

The information label of systems of decrease in toxicity of the fulfilled gases (VECI) is located in an impellent compartment of the car. On a label the data and the information on options contain спецификационные. At performance of procedures of service of system in case of occurrence of different interpretations always it is necessary to give preference to the data of label VECI.

Label VECI is fixed on a support of a radiator and contains the information on adjustment of turns of idling, a corner of an advancing of ignition, an arrangement of knots of systems of decrease in toxicity, a lining of vacuum lines etc.

Near to label VECI on all models it is fixed шильда with the scheme of connection of vacuum components of system.