Mitsubishi Galant

1990 — 2001 of release

Repair and car operation

Mitsubishi Galant
+ Identification numbers of the car
+ Governing bodies
+ Settings and routine maintenance
+ Engine
- Cooling and heating systems
   Antifreeze - general information
   Check of serviceability of functioning and thermostat
   Check of a condition of the fan of system of cooling
   Removal and installation of a radiator of system of cooling
   Check of a condition of the water pump
   Removal and installation of the water pump
   Check of serviceability of functioning and replacement of the block of the sensor of a measuring instrument of temperature of cooling liquid
   Replacement of the electromotor of a drive of the fan of a heater
   Removal and installation of the heat exchanger of a heater
   Check of serviceability of functioning and service of systems of heating and air conditioning
   Removal and installation of assembly of the control panel by functioning of a heater and air conditioner, adjustment of driving cables
+ Power supply system and release
+ engine Electric equipment
+ Control systems of the engine
+ Manual transmission
+ Coupling and transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Check of serviceability of functioning and thermostat

Do not open a cover of a radiator and do not remove the thermostat before complete cooling of the engine! See also prevention at the beginning of the Section Antifreeze - general information.



1. Before finally affirming as opinion on a thermostat exit out of operation, check level of cooling liquid in system, a condition and effort of a tension of a driving belt (see. Head of Control and routine maintenance), and also serviceability of functioning of a measuring instrument / control lamp of temperature.
2. One of the possible reasons of too slow warming up of the engine (according to measuring instrument indications) is thermostat jamming in open situation. Replace the thermostat new.
3. In case of an overheat of the engine touch a hand the bottom hose of a radiator. If the hose is not heated up, possibly, the thermostat is jammed in a closed position, blocking circulation of cooling liquid through a radiator. Replace the thermostat.

At all do not maintain the car with the removed thermostat, - feedback of the onboard processor that will lead to increase of toxicity of the fulfilled gases and excessive increase in fuel consumption thus can become torn.

4. If the bottom hose is heated up, it means that cooling liquid regularly circulates through a radiator, i.e. the thermostat is open. Address to materials of the Section devoted to diagnostics of malfunctions of system of cooling.
5. Thermostat check on a workbench gives the most exact results.
6. Remove the thermostat from the engine (see. Head Engine).
7. Tie up to thermostat assembly a piece of a wire and lower it in the capacity filled with water. There lower the thermometer.

Track, that the thermometer and the thermostat did not adjoin to walls and a capacity bottom.

8. Start to warm up slowly water, watching change of indications of the thermometer, - operation of the valve of the thermostat should occur in strict accordance with requirements of Specifications.
9. Estimate size of complete opening of the valve, - the nominal rate makes 8 mm.
10. The description of procedures of removal and installation of the thermostat is provided in the Section Removal and thermostat installation.