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

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Check of serviceability and replacement of a regulator of pressure of fuel

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


Models 1995 вып. Are equipped built in in the block of the fuel pump/gauge of level of fuel by a pressure regulator (see an illustration), therefore on the given models there is a possibility of check of only adjusted pressure of fuel.

Check

 PERFORMANCE ORDER

  1. Dump pressure in the power supply system (Section Procedure of dump of pressure of fuel).
  2. Disconnect a negative wire from the battery.
  3. Establish a manometre (Section Check of pressure of fuel and functioning of the fuel pump).
  4. Start the engine and check up it on leaks in area штуцерных manometre connections.
  5. Walk on a vacuum hose from a regulator of pressure of fuel to the inlet pipeline. Disconnect a hose from the pipeline and connect to its union the vacuum gauge. Start the engine and make sure available depression. Remove the vacuum gauge and connect into place a hose.
  6. Disconnect a vacuum hose from a regulator of pressure of fuel and connect instead of it the manual vacuum pump. Consider indications of a manometre in the presence of depression on a regulator and in the absence of that (illustrations "see Connect the vacuum pump..." And "... And then having created it..."). With increase in depth of depression pressure of fuel should fall. Compare results of measurements to requirements of Specifications.
  7. Connect to a regulator a vacuum hose and measure pressure of fuel at single turns of the engine, again having compared results to requirements of Specifications. Disconnect a vacuum hose and track change by pressure - it should jump up to the maximum admissible value immediately after a detachment hoses. If changes in manometre indications has not occurred, replace a regulator.
  8. If pressure of fuel is too low, press a line of return of fuel (installation of a special flexible insert as the line can appear metal probably is required) and track change of indications of a manometre. If pressure has not risen, the fuel pump passableness of a line of giving of fuel is faulty or broken. In case of sharp pressure jump replace a regulator.
  9. If the measured pressure of fuel is excessively high, stop the engine and dump pressure in the power supply system (Section Procedure of dump of pressure of fuel). Disconnect a line of return of fuel and blow it, checking on passableness. If passableness of a line is not broken, replace a pressure regulator.

Replacement

 PERFORMANCE ORDER

  1. Dump pressure in the power supply system (Section Procedure of dump of pressure of fuel).
  2. Disconnect a negative wire from the battery.
  3. Disconnect vacuum and fuel hoses from a pressure regulator, then give bolts of its fastening.
  1. Give fixing bolts (arrows) (the engine in volume 5.2 is shown) and...

... Remove a regulator of pressure from a fuel highway.

  1. Remove a regulator.
  2. Installation make upside-down. Do not forget to replace a sealing ring. Before installation grease a new ring with pure impellent oil.
  3. After end of installation of a regulator check up system on presence of leaks of fuel.