Jeep Grand Cherokee

1993-1999 of release

Repair and car operation

Engine

The engine is not turned in attempt of its start

1. Corrosion of plugs of the battery takes place or weakened fastening of tips of wires on them. Check a condition of plugs and tips. Tighten terminal clips, if necessary remove corrosion traces.
2. The battery is discharged or faulty. If tips of wires are found pure and reliably fixed on battery plugs, turn the ignition key in the situation ON, then include head headlights and/or windscreen cleaners. If this electric equipment does not function, the battery is discharged.
3. Transmission is poor established in the situation "R" (AT) or on neutral transfer (RKPP), or coupling is not squeezed completely out.
4. Conducting in a chain of system of start is torn off or weakened fastening of wires on plugs. Check a condition of wires, plugs and electric sockets of the battery, the traction relay of a starter and the ignition lock.
5. The starter gear wheel is jammed in a gear wreath of a flywheel. On the models equipped with RKPP transfer it to transfer and, ceilings manually the car, turn that its engine. At the first possibility remove a starter and check a condition of a gear wheel and a gear wreath of a flywheel.
6. The traction relay of a starter (Head System of electric equipment of the engine) is faulty.
7. The starter (Head System of electric equipment of the engine) is faulty.
8. The ignition lock (Head System of onboard electric equipment) is faulty.

The engine is turned, but not started

1. The fuel tank is empty.
2. Malfunction in system of injection of fuel (Head of the Power supply system and production of the fulfilled gases) takes place.
3. The battery (the engine is turned too slowly) is discharged. Check electric equipment functioning (see. The section Engine is not turned in attempt of its start).
4. Skorrodirovali terminal connections of the battery or was weakened by their fastening (see. The section Engine is not turned in attempt of its start).
5. The fuel pump (Head of the Power supply system and production of the fulfilled gases) is faulty.
6. Components of system of ignition (Head System of electric equipment of the engine) are damaged or excessively humidified.
7. Spark plugs are worn-out or faulty or the candle gap (Head of Control and routine maintenance) is incorrectly exposed.
8. Conducting of an electric contour of system of start is torn off or disconnected or weakened fastening of wires on plugs (see (see. The section Engine is not turned in attempt of its start).
9. Conducting of a contour of the coil of ignition is torn off or disconnected or weakened fastening of wires on coil plugs (Head System of electric equipment of the engine).

The starter functions without an engine provorachivaniye

1. The starter gear wheel is jammed. Remove a starter (Head System of electric equipment of the engine) and check its condition.
2. Teeth of a gear wheel of a starter or flywheel wreath are worn-out or damaged. Uncover in a back part of the engine and examine.

Start of the cold engine is complicated

1. The battery (is discharged or insufficiently charged see. The section Engine is not turned in attempt of its start).
2. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.

Start of the hot engine is complicated

1. The air filter (Head of Control and routine maintenance) is blocked.
2. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
3. Fuel does not reach injectors of system of injection (Head of the Power supply system and production of the fulfilled gases).

Gearing of a starter occurs is too noisy or with difficulty

1. Teeth of a gear wheel of a starter or flywheel wreath are worn-out or damaged. Uncover in a back part of the engine (if that is provided) and examine.
2. Bolts of fastening of a starter are lost or weakened effort of their tightening.

The engine is started, but immediately глохнет

1. Electroconducting is faulty or weakened fastening of wires on plugs of the distributor, the coil or the generator.
2. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
3. Depression losses through prokladochny surfaces of the inlet pipeline or the block of injection of fuel take place. Make sure of reliability of an inhaling of fixing bolts/nuts, check the fact and quality of fastening on the unions on the inlet pipeline of all vacuum hoses. Check a condition of hoses and correctness of their connection (to the unions).

Stability of operation of the engine on single turns is broken

1. Depression losses take place. Make sure of reliability of an inhaling of fixing bolts/nuts, check the fact and quality of fastening on the unions on the inlet pipeline of all vacuum hoses. Hear to the working engine by means of a stethoscope or a piece of a fuel hose. Existence of a hissing sound will allow to reveal a source of "leakage" of vacuum. It is possible to use for check by solution of soap water not less effectively.
2. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
3. The valve of system of operated ventilation of a case (PCV) or hose of system of continuous ventilation (CCV) (Head of Control both routine maintenance and Systems of decrease in toxicity of the fulfilled gases and engine management) is blocked.
4. The air filter (Head of the Power supply system and production of the fulfilled gases) is blocked.
5. The fuel pump does not provide giving of enough of fuel to injectors of system of injection (Head of the Power supply system and production of the fulfilled gases).
6. Leaks through laying of a head of cylinders take place. Make measurement of kompressionny pressure in engine cylinders.
7. Working ledges of cams of a camshaft (Head Ryadny the six-cylinder engine) are worn-out.

Ignition admissions take place at operation of the engine on single turns

1. Spark plugs are worn-out or polluted or the candle gap (Head of Control and routine maintenance) is incorrectly exposed.
2. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
3. Wires of spark plugs (Head of Control and routine maintenance) are faulty.
4. Depression losses in the inlet pipeline or through shlangovy connections (The section stability of operation of the engine on single turns Is broken) take place.
5. There is not enough, or kompressionny pressure in cylinders is non-uniformly distributed. Make compression measurement (Head of Control and routine maintenance).

Ignition admissions take place at car movement on transfer

1. The fuel filter is blocked or power supply system pollution (Head of Control and routine maintenance) takes place.
2. Spark plugs are faulty or polluted or the candle gap (Head of Control and routine maintenance) is incorrectly exposed.
3. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
4. Defect of candle wires (Head of Control and routine maintenance) takes place.
5. Components of systems of decrease in toxicity of the fulfilled gases (The head of System of decrease in toxicity of the fulfilled gases and engine management) are faulty.
6. Insufficiently or kompressionny pressure is non-uniformly distributed between cylinders. Remove spark plugs and make measurement of kompressionny pressure (Head Ryadny the six-cylinder engine).
7. The ignition system (Head System of electric equipment of the engine) is faulty.
8. Depression losses on the throttle case, the inlet pipeline or through vacuum hoses (take place see. The section stability of operation of the engine on single turns) Is broken.

Engine глохнет

1. Adjustment of turns of idling is broken. See VECI label.
2. The fuel filter is blocked and/or moisture or dirt got to a power supply system (Head of Control and routine maintenance).
3. Refusal of components of a power supply system or sensors (Head of the Power supply system and production of the fulfilled gases and System of decrease in toxicity of the fulfilled gases and engine management) takes place.
4. Components of systems of decrease in toxicity of the fulfilled gases (The head of System of decrease in toxicity of the fulfilled gases and engine management) are faulty.
5. Spark plugs are faulty or polluted or the candle gap (Head of Control and routine maintenance) is incorrectly exposed. Also check a condition of candle wires (Head of Control and routine maintenance).
6. Depression losses on the case of a throttle or through vacuum hoses (take place see. The section stability of operation of the engine on single turns) Is broken.

Decrease in engine capacity takes place

1. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
2. It is excessive люфт a distributor shaft. At the same time check a condition a begunka, covers, wires, etc. (Heads of Control both routine maintenance and System of electric equipment of the engine).
3. Spark plugs are faulty or the candle gap (Head of Control and routine maintenance) is incorrectly exposed.
4. The ignition coil (Head System of electric equipment of the engine) is faulty.
5. There does not correspond to requirements AT liquid level (Head of Control and routine maintenance).
6. Coupling (Head Coupling and the transmission line) revolves.
7. The fuel filter is blocked and/or dirt/moisture got to a power supply system (Head of Control and routine maintenance).
8. It is faulty the system of decrease in toxicity of the fulfilled gases (The head of System of decrease in toxicity of the fulfilled gases and engine management) functions.
9. Fuel not that grade is filled. Fill in in a tank fuel with the demanded octane number.
10. Insufficiently or kompressionny pressure is non-uniformly distributed between cylinders. Make the compression measurement which analysis of results allows to reveal existence of leakages of valves and/or violation of tightness of laying of a head of cylinders (Head Ryadny the six-cylinder engine).

There are cottons in carburetors/the flashes in release system

1. Functioning of systems of decrease in toxicity of the fulfilled gases (The head of System of decrease in toxicity of the fulfilled gases and engine management) is broken.
2. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
3. Defect in a secondary contour of system of ignition (destruction of insulators of spark plugs or defects of candle wires) (Heads of Control both routine maintenance and System of electric equipment of the engine) takes place.
4. The system of injection of fuel or its components needs adjustment are excessively worn-out (Head of the Power supply system and production of the fulfilled gases).
5. Depression losses on the throttle case, the inlet pipeline or through vacuum hoses (take place see. The section stability of operation of the engine on single turns) Is broken.
6. Valves (Head Ryadny the six-cylinder engine) are jammed.
7. The order of connection of candle wires (Head of Control and routine maintenance) is broken.

At movement with acceleration or uphill there are sounds of a detonation of a mix

1. Fuel not that grade is filled. Fill in in a tank fuel with the demanded octane number.
2. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
3. Spark plugs not that type are established. Check compliance such as candles to requirements of a label of VECI located under a cowl. Also check candles and their wires on existence of damages (Head of Control and routine maintenance).
4. The system of decrease in toxicity of the fulfilled gases (The head of System of decrease in toxicity of the fulfilled gases and engine management) is faulty.
5. Depression losses (take place see. The section stability of operation of the engine on single turns) Is broken.

Kalilny ignition (the engine continues to work after ignition switching off) takes place

1. Idling turns (Head of Control and routine maintenance) are excessively high.
2. Malfunction of components of a power supply system or electric equipment (Head of the Power supply system and production of the fulfilled gases and System of electric equipment of the engine) takes place.
3. The working temperature of the engine is excessive. The possible reasons of this violation can be decrease in level of a cooler (Head of Control and routine maintenance), failure of the thermostat, blocking of a radiator or malfunction of the water pump (The head of System of cooling, heating and air conditioning).