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


Check of serviceability of system of injection of fuel

The description of underwritten procedure is made on the basis of the assumption that pressure of fuel is adequate (see Section Check of pressure of fuel and functioning of the fuel pump).


    Check up quality and reliability of fastening of contacts of wires of grounding on the inlet pipeline. Check up also contacts of all system of electroconducting concerning work. Easing of fastening of plugs and infringement of quality of grounding can lead to more serious refusals. Make sure that the battery is completely charged, as functioning of the block of management and the gauges defining quantity of submitted fuel, appreciably depends on accuracy of giving on them of a food. Check up a condition of an element of the air filter - the filter hammered by a dirt essentially reduces efficiency of functioning and profitability of the engine (the Head of Adjustment and routine maintenance). If during check the burnt down safety lock is found out, replace it and check up, whether there is it at once again out of operation. If yes, - try to reveal short circuit on weight in a plait of wires of the fuel pump. Check up on leaks a sleeve of the air inlet going to the inlet pipeline. Leaks such conduct to excessive pauperisation of a mix. Also check up a condition of all vacuum hoses of the inlet pipeline and them штуцерных connections. Disconnect a sleeve of an air inlet from the case of a throttle and check up it on presence of signs of pollution, accumulation of soot and other adjournment. In case of need clean a sleeve by means of a tooth-brush and a cleaner for carburettors. At the working engine serially press a stethoscope to each of injectors and listen to the clicks published by it specifying in serviceability of its functioning. Instead of a stethoscope to an injector it is possible to press a sting of a screw-driver and to listen to clicks through its handle. Frequency made by an injector click depends on engine turns. Disunite electric sockets of injectors and measure resistance of each of them. Compare results to the data of Specifications.
    Measure resistance of each of injectors - it should equal approximately 12 Century
    Connect a control lamp of check of injectors to a socket of each of injectors serially. Turn the engine. The lamp should flash in regular intervals on each of sockets. It is check of pressure of a food of injectors.
    Connect a control lamp of check of injectors to an electric socket of each of them and make sure that it blinks at проворачивании the engine.
    The further checks of system are resulted in following Sections of the Head.