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
+ Manual box of a gear change
- Automatic transmission
   The general information
   Diagnostics of malfunctions - the general information
   Removal and installation of the lever of switching
   Check of a condition and adjustment of a cable of switching
   The description, replacement and adjustment of a cable of a drive throttle заслонки in a mode kik-daun (TV-cable)
   Serviceability check, adjustment and replacement of the gauge-switch of the permission of start
   Adjustment of a cable lay блокиратора
   Check of a condition and replacement of a support of transmission
   Epiploon replacement
   The design description, removal and installation of lines and hoses of cooling of transmission
   Removal and installation of an additional cooler
   Removal and installation of automatic transmission
   Replacement of the module of management with transmission (ТСМ) (only for АW-4 and 42RЕ)
   Diagnostics of system of electronic control by 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

e65f60b7


Diagnostics of malfunctions - the general information

Refusals АТ can occur on five principal causes which concern a bad overall performance of the engine, infringement of adjustments, malfunction of hydraulics, the mechanical reasons or failure of a control system (processor). Diagnostics of all problems connected with АТ should begin with check of the most easily removed reasons, as that: level and a condition трансмиссионной liquids (the Head of Adjustment and routine maintenance), adjustment of draught of a gear change and adjustment of draught of change of position throttle заслонки. Further it is necessary to spend trial runs for the purpose of check of elimination of a problem during the previous corrections. If to debug nevertheless it was not possible, further, fuller, diagnostics АТ should be left to experts. The Section Diagnostics of malfunctions in the beginning of the given Management see also.

Primary checks

 PERFORMANCE ORDER

  1. During a trip warm up transmission to normal working temperature.
  2. Check up level трансмиссионной liquids (the Head of Adjustment and routine maintenance):
    • If liquid level is unusually small, add its necessary quantity (on measuring probeу), then check up transmission on presence of signs of external leaks.
    • If liquid level, on the contrary, is excessively high, check up the merged surplus on presence of signs of pollution by a cooler. Presence in трансмиссионной liquids of a cooler of the engine is a sign of damage of internal walls of the radiator separating tanks, filled трансмиссионной a liquid from the main cavity of a radiator (the Head of System of cooling, heating and an air conditioning).
    • If liquid foaming takes place, merge it and replace, then check up the merged liquid on hit in it of a cooler. Check up level of filling of transmission.
  3. Check up turns of idling of the engine.

If engine failures take place, it is not necessary to start performance of primary checks before full elimination of their reasons.

  1. Check up freedom of a course of draught of a drive of change of position throttle заслонки in a mode kik-daun. In case of need make adjustment (Has undressed the Description, replacement and adjustment of a cable of a drive throttle заслонки in a mode kik-daun (a TV-cable)).

Draught of a drive заслонки in a mode kik-daun can function normally at the switched off and cold engine, however to give refusal after its warming up. Check functioning of draught both at cold, and at разогретом to normal working temperature the engine.

  1. Check up functioning of draught of a drive of a gear change (Section Check of a condition and adjustment of a cable of switching). Make sure of correctness of adjustment and smoothness of a course of draught.

Check of leaks трансмиссионной liquids

The most part of leaks трансмиссионной liquids can be revealed a visual way. Repair usually consists in epiploon or lining replacement. If to find out a leak source it is not possible, performance offered below procedure can help.

 PERFORMANCE ORDER

  1. Identify a liquid. Make sure that traces трансмиссионной liquids, instead of impellent oil or a brake liquid (liquid АТ has dark red colouring) are found out.
  2. Try to establish a leak source. Make on the car a short trip (of some km), then park it, having stopped over the sheet of a cardboard spread on the earth. After some minutes the leak source can be established on drops falling on a cardboard.
  3. Carefully examine a suspected component and a surface directly round it. Special attention give to surfaces interfaced through a lining. Often useful at visual survey there is an application of a small pocket mirror.
  4. If the leak source on former does not manage to be revealed, carefully clear a suspected surface with application обезжиривателя or solvent, then dry it.
  5. Again make a short trip for warming up of transmission to normal working temperature, banishing transmission during it through positions of all transfers. After a stop again make visual survey of a suspected component.
  6. After the leak source is established, it is necessary to find out and eliminate the reason of its occurrence. If to replace a lining, having left a flange deformed, leak in the near future will arise again. The bent flanges should be necessarily отрихтованы.
  7. Before starting elimination of the reason of leak make sure of performance listed below conditions as their default can lead to fast renewal of leaks.

Some from listed below conditions cannot be executed without application of special tools and carrying out of careful deep examination. Elimination of such problems should be left to experts of dealer branch or a car-care centre workshop.

Leaks through a defective lining

Regularly make external survey of the pallet картера transmissions. Check presence and reliability of a tightening of bolts, a condition of a lining and absence of deformations of the pallet (presence on the pallet of dents can be a sign of damage of the case of the valve being in it).

Excessive increase of level and-or pressure трансмиссионной liquids can be the reason of occurrence of leaks of a liquid through a pallet lining картера. It can appear the ventilating tube is corked, bolts of fastening of the pallet can be drawn, the probability of deformation of a flange of the pallet or damage of a surface interfaced to it картера transmissions is not excluded. Leak can be a consequence of damage of the lining or formation of cracks or cavities to moulding картера. If the lining has been generated from hermetic, hermetic not that grade has been quite probably used.

Leaks through epiploons

The reason of occurrence of leaks through an epiploon excessive level or pressure of a liquid or ventilation corking also can be. Damage of a contact surface of a nest of an epiploon or a shaft passing through an epiploon is not excluded, it can appear is damaged or the wrong image establishes also a epiploon. Bearing easing can lead to occurrence of excessive fight of a shaft that also leads to occurrence of leaks through an epiploon.

Make sure that the sealing lining of a tube measuring probeа is in a satisfactory condition, and the tube is planted in the correct image in картер. Regularly check a surface around an arrangement приводной a gear wheel or the speedometer gauge on presence of signs of leaks. In the presence of traces трансмиссионной liquids, check up a condition of a sealing ring.

Leaks through картер

If there are signs of leaks through actually картер transmissions it is possible in its moulding there were cavities or cracks. Carter should be repaired or replaced.

Make sure that штуцерные connections охладительных hoses are in a satisfactory condition and are reliably tightened.

The liquid follows through a ventilating tube or a tube of a jellied mouth

If it occurs, transmission is overflowed and it is possible to speak about hit in a cooler liquid, presence of cavities in moulding of a boat, wrong landing measuring probeа, corking of a ventilating tube or returnable drain apertures.