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
- Power supply system and production of the fulfilled gases
Procedure of dumping 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 fuel level sensor
Removal and installation of assembly of an air purifier
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 stabilization of turns of idling (IAC)
Service of system of production of the fulfilled gases - the general information
+ 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
+ System of onboard electric equipment
+ Governing bodies and operation receptions
Repair and replacement of fuel lines
Always before the beginning of works dump pressure in a power supply system (The section Procedure of dumping of pressure of fuel).
Lines of giving and return of fuel and isparitelny lines pass between a fuel tank and an impellent compartment of the car. Lines fasten to the car bottom by means of clips and screw assemblies and from time to time should be checked on existence of traces of leaks, excesses and deformations.
If it is available obvious signs of pollution of a power supply system or the fuel filter, lines should be disconnected and blown. Check the mesh filter of the block of the sensor of a measuring instrument of fuel on existence of signs of aging of a material and damages.
If there is a need for replacement of fuel lines or lines of systems of decrease in toxicity of the fulfilled gases, use only replaceable sections with Chrysler marking (or equivalent to them on a design and a material).
Do not try to change at all steel tubes copper or aluminum. 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 this factor.
Some of lines are equipped carving type with the shtutserny connections equipped with sealing rings. Each time weakening of shtutserny connections during repair and service and repair of components observe the following requirements:
Do not lay flexible hoses at distance closer than 100 mm from components of system of production of the fulfilled gases and 250 mm from the catalytic converter are closer. Metal lines and flexible hoses should not adjoin to elements of a frame of the car. The minimum gap providing implementation of this requirement makes 6,5 mm.
Removal and installation
In case of damage of the 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.