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Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 of release

Repair and car operation



Suzuki Grandee of Wetar
+ General information
+ Maintenance and greasing
+ Heater, ventilation and conditioner
- Steering
   + Suspension bracket, wheels and tires
   + Adjustment of corners of installation of wheels of a forward suspension bracket
   - Power steering system
      + Main description
      - Diagnostics
         General diagnostic table
         + Steering wheel
         + power steering Liquid
         + Driving belt of the pump of the power steering
         + idling System
         + Liquid
         - Hydraulic pressure in GUR system
            Pressure check
         + Protective covers
         Procedure of a razvozdushivaniye of system
   + Steering wheel and steering column
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft/bearing of a shaft. Oil epiploon
+ Driveshafts
+ Brake system
+ Engines
+ Fuel system
+ ignition System
+ start System
+ release System
+ Transmissions
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment


easycarhire24.com.


Hydraulic pressure in GUR system

Pressure check

 PERFORMANCE ORDER

  1. After careful cleaning of connection of a hose of a high pressure with the pump of the hydraulic booster, disconnect a hose from the pump and establish the special equipment (the sensor of pressure of oil, connecting branch pipes). Shade each nut with the corresponding moment of an inhaling.
    • Special tool:
      • (А) — 09915-77411 (sensor of pressure of oil)
      • (B) — 09915-77420

Be accurate, do not damage a conditioner radiator during performance of service works (if it is equipped).

  1. Check each connection on leakage of liquid and expel air. See. Procedure of a razvozdushivaniye of system in this Chapter.
2 — a connector
3 — laying
4 — a connecting bolt
5 — a sleeve of a high pressure
6 — a sleeve of low pressure
1 — a tank for power steering liquid
5 — a sleeve of a high pressure
6 — a sleeve of low pressure
  1. At the working engine idling, повращайте a wheel for engine warming up while the temperature in a tank of the hydraulic booster will not reach 50 – 60°С (122 - 140°F).
  1. Check return pressure, measuring hydraulic pressure idling, without impact on a steering wheel. Return pressure: below, than 1000 kPas (10 kg/cm2, 142 psi).
  2. If return pressure is higher than the specified values, check regulating valve and hydraulic tubes on zasor.
1 — a tank for power steering liquid
2 — the valve of a manometer (is open)
3 — the pump of the hydraulic booster
4 — a steering rack
5 — a sleeve of a high pressure
6 — a sleeve of low pressure
  1. Check unloading pressure.
  2. Increase engine turns to 1500 mines-1. Gradually close the valve, watching increase in pressure on a manometer and estimate unloading pressure (the maximum hydraulic pressure).
    • Unloading pressure:
      • 6200-7000 kPas
      • (62-70 kg/cm2, 882-995 psi) — for the G16 engine
      • 6700-7500 kPas
      • (67-75 kg/cm2, 953-1067 psi) — for the J20 engine
      • 7050-7850 kPas
  3. If pressure is higher specified, malfunction of the return valve is possible.
  4. If pressure is lower specified, malfunction of the pump of the hydraulic booster or jamming of a spring of the return valve is possible.

Do not block the manometer valve more long than for 10 seconds.


1 — a tank for power steering liquid
2 — the valve of a manometer (is closed)
3 — the sensor of pressure of oil
4 — the pump of the hydraulic booster
5 — a steering rack
  1. Then open the manometer valve completely and increase turns to 1500 mines-1. Then completely turn out a wheel to the left or to the right and estimate unloading pressure.
    • Unloading pressure:
      • 6200-7000 kPas.
      • (62-70 kg/cm2, 882-995 psi) — for the G16 engine
      • 6700-7500 kPas
      • (67-75 kg/cm2, 953-1067 psi) — for the J20 engine
      • 7050-7850 kPas
  2. If pressure is higher specified, malfunction of the return valve is possible.
  3. If pressure is lower specified, malfunction of a steering rack is possible. Replace a steering rack.

Never detain a steering wheel in extreme situation more than for 10 seconds.


1 — a tank for power steering liquid
2 — the valve of a manometer (is open)
3 — the sensor of pressure of oil
4 — the pump of the hydraulic booster
5 — a steering rack