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
   The general information
   Procedure of dump of pressure of fuel
   Check of pressure of fuel and functioning of the fuel pump
   Removal and installation of a fuel tank
   Cleaning and repair of a fuel tank - the general information
   Repair and replacement of fuel lines
   Removal and installation of the fuel pump
   Check of serviceability and replacement of the block of the gauge of level of fuel
   Removal and installation of assemblage of an air cleaner
   Replacement of a cable of gas
   System of injection of fuel - the general information
   Check of serviceability of system of injection of fuel
   Serviceability check, removal and installation of the case of a throttle
   Check of serviceability and replacement of a regulator of pressure of fuel
   Serviceability check, removal and installation of injectors of fuel
   Check of functioning and replacement of components of system of stabilisation of turns of idling (IAC)
   Service of system of release of the fulfilled gases - the general information
+ System of an electric equipment of the engine
+ 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




Repair and replacement of fuel lines

The prevention in the beginning see Procedure of dump of pressure of fuel Has undressed.

Always before the beginning of works dump pressure in the power supply system (Section Procedure of dump of pressure of fuel).

Lines of giving and return of fuel and испарительные pass lines between a fuel tank and an impellent compartment of the car. Lines fasten to the bottom of the car by means of clips and screw assemblages and from time to time should be checked on presence of traces of leaks, excesses and deformations.

If it is available obvious signs of pollution of the power supply system or the fuel filter, lines should be disconnected and продуты. Check up the mesh filter of the block of the gauge of a measuring instrument of fuel on presence of signs of ageing of a material and damages.

Steel tubes

If there is a necessity for replacement of fuel lines or lines of systems of decrease in toxicity of the fulfilled gases, use only replaceable sections with marks Chrysler (or equivalent to them on a design and a material).

Do not try to change at all steel tubes copper or aluminium. These materials do not provide sufficient durability for keeping of the vibrating loadings arising in a course of normal operation of the car.

As the fuel lines used in systems of injection of fuel constantly are under pressure, their design should satisfy to the special conditions connected with the given factor.

Some of lines are equipped carving type штуцерными by the connections equipped with sealing rings. Each time easing штуцерных connections during repair and service and repair of components observe following requirements:

  • For easing and a tightening штуцерных connections use the complete set from two wrenches.
  • Check all sealing rings on presence of cuts, cracks and signs of ageing of a material. In case of revealing of defects change rings.
  • If there is a necessity for replacement of fuel lines, try to use only firm replaceable components or the components which design meets the requirements of the standard of the firm.

Flexible hoses

As replaceable components use only firm hoses or equivalent to them on a design and material type. Non-observance of this requirement is fraught with an exit of hoses out of operation as a result of elevated pressure influence in system.

Do not lay flexible hoses on distance more close 100 mm from components of system of release of the fulfilled gases and 250 mm from каталитического are closer than the converter. Metal lines and flexible hoses should not adjoin to elements of a frame of the car. The minimum backlash providing performance of the given requirement makes 6,5 mm.

Removal and installation

 PERFORMANCE ORDER

  1. Dump pressure in the power supply system.
  2. Remove all fixture fixing lines on a body of the car.
  3. There are various methods of undocking штуцерных connections of fuel lines (depending on their design). Having carried out the given undocking, cautiously remove lines from chassis elements.

Service штуцерных the connections of fast joining equipped with a plastic ring is not made in an individual order. Do not try to make repair of a line in case of failure of connection of this kind - replace it in gathering.


  1. For undocking штуцерных the connections equipped with a plastic ring press a tube in connection and compress a ring of the plastic holder.
  1. For undocking штуцерных connections язычкового type press lock uvulas to a line and pull for last.
  1. Installation make upside-down. Do not forget to replace sealing rings in connections of carving type (if those are used).

Repair

In case of damage of a fuel line (metal or flexible) it is necessary to replace defective section with a firm replaceable element. Installation of replaceable components of other type it is fraught with their exit out of operation as a result of elevated pressure influence in system.