Suzuki Grand Vitara SQ416/SQ420/420WD

Since 1998 of release

Repair and car operation

Suzuka Grandee Vitara
+ The general information
+ Maintenance service and greasing
+ Heater, ventilation and the conditioner
+ Steering
+ Suspension bracket
+ Wheels and tyres
+ Forward приводной a shaft shaft/bearing. An oil epiploon
+ Kardannye shaft
+ Brake system
- Engines
   + Mechanical part of engine G16
   + Mechanical part of engine J20
   - Engine cooling
      + The general description
      + Diagnostics
      + Maintenance service
      - Vehicle routine maintenance
         Plums of a cooling liquid
         Hoses or water pipes of system of cooling
         The thermostat
         Belt of the cooling fan
         The cooling fan and муфта the fan
         The water pump
         The gauge of temperature of a cooling liquid of the engine (EATS)
      Necessary service materials
      Technical characteristics of the rotating moment of an inhaling
+ Fuel system
+ Ignition system
+ Start system
+ Release system
+ Transmissions
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. An immobilizer
+ Electric equipment


The thermostat



  1. Merge system of cooling and twirl a drain stopper.
  2. Uncover the thermostat (1).
  3. Clean the thermostat.
Engine G16.

Engine J20.



  1. Be convinced of that the final pneumovalve (1) thermostats the pure. If this valve is littered, the engine will overheat.
  1. Check up, that in a valve saddle there were no extraneous particles that will prevent to sit to the valve strongly.
  2. Check up consolidation (2) thermostats and кольцеобразное consolidation about breakage, destruction or any other damage.
  3. Check up the thermostat as follows:
    • Ship the thermostat (1) in water, and gradually heat up water.
    • Be convinced of that the valve starts to open at certain temperature. If the valve starts to open at temperature much more low or above certain temperature, the thermostat should be replaced with the new. Such device if it to use repeatedly, will lead to overcooling or overheating.

Temperature at which the valve starts to open

Engine J20: 82 2С (179 3.6F)

Engine G16: 88 2С (190 3.6F)

Temperature at which the valve completely opens

Engine J20: 95С (203F)

Engine G16: 100С (212F)

Height of lifting of the valve

Engine J20: more, than on 8 mm (0.315 inches) at 95С (203F)

Engine G16: more, than on 8 mm (0.315 inches) at 100С (212F)

1 — the thermostat
2 — the thermometer
3 — a heater



  1. At installation of the thermostat (1) and кольцеобразного consolidations on the thermostat case, establish it so that:
    • The final pneumovalve (2) left on top (engine G16).
    • The final pneumovalve (2) left on a mark of comparison (3) and in recession of a casing of the thermostat (engine J20).
  2. Establish a thermostat cover on an inlet collector (engine G16), the water pump (engine J20).
  3. Fill cooling system. Address to Sections the Cooling liquid and Washing and filling of system of cooling in this Chapter.
  4. Connect negative (-) a cable to the accumulator.
  5. After installation check up each detail on a leaking.
Engine G16.

Engine J20.