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
   + Adjustment of corners of installation of wheels of a forward suspension bracket
   - System of the hydraulic booster of a wheel
      + The basic description
      - Diagnostics
         The general diagnostic table
         + Steering wheel
         + Liquid of the hydraulic booster of a wheel
         + Privodnoj belt of the pump of the hydraulic booster of a wheel
         + Idling system
         + Liquid
         - Hydraulic pressure in system GUR
            Pressure check
         + Protective covers
         Procedure развоздушивания systems
   + Steering wheel and steering column
+ Suspension bracket
+ Wheels and tyres
+ Forward приводной a shaft shaft/bearing. An oil epiploon
+ Kardannye shaft
+ Brake system
+ Engines
+ 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
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Hydraulic pressure in system GUR

Pressure check

 PERFORMANCE ORDER

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

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

  1. Check up each connection on leak of a liquid and expel air. Procedure развоздушивания systems in this Chapter see.
2 — a connector
3 — a lining
4 — a connecting bolt
5 — a high pressure sleeve
6 — a sleeve of low pressure
1 — a tank for a liquid of the hydraulic booster of a wheel
5 — a high pressure sleeve
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 – 60С (122 - 140F).
  1. Check up return pressure, measuring hydraulic pressure idling, without influence on a steering wheel. Return pressure: more low, than 1000 кПа (10 kg/sm2, 142 psi).
  2. If return pressure above the specified values, check up regulating valve and hydraulic tubes on засоры.
1 — a tank for a liquid of the hydraulic booster of a wheel
2 — the manometre valve (is opened)
3 — the hydraulic booster pump
4 — steering рейка
5 — a high pressure sleeve
6 — a sleeve of low pressure
  1. Check up unloading pressure.
  2. Increase turns of the engine to 1500 mines-1. Gradually close the valve, observing of pressure increase at a manometre and estimate unloading pressure (the maximum hydraulic pressure).
    • Unloading pressure:
      • 6200 – 7000 кПа
      • (62 – 70 kg/sm2, 882 – 995 psi) — for engine G16
      • 6700 – 7500 кПа
      • (67 – 75 kg/sm2, 953 – 1067 psi) — for engine J20
      • 7050 – 7850 кПа
  3. If pressure above specified malfunction of the return valve is possible.
  4. If pressure below specified malfunction of the pump of the hydraulic booster or jamming of a spring of the return valve is possible.

Do not block the manometre valve longer than for 10 seconds.


1 — a tank for a liquid of the hydraulic booster of a wheel
2 — the manometre valve (is closed)
3 — the gauge of pressure of oil
4 — the hydraulic booster pump
5 — steering рейка
  1. Then open the manometre 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 кПа.
      • (62 – 70 kg/sm2, 882 – 995 psi) — for engine G16
      • 6700 – 7500 кПа
      • (67 – 75 kg/sm2, 953 – 1067 psi) — for engine J20
      • 7050 – 7850 кПа
  2. If pressure above specified malfunction of the return valve is possible.
  3. If pressure below specified malfunction the helmsman рейки is possible. Replace steering рейку.

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


1 — a tank for a liquid of the hydraulic booster of a wheel
2 — the manometre valve (is opened)
3 — the gauge of pressure of oil
4 — the hydraulic booster pump
5 — steering рейка