Suzuki Grand Vitara
+ General information
+ Maintenance and lubricant
+ Heater, ventilation and conditioner
+ Steering
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft / bearing of a shaft. Oil epiploon
+ Driveshafts
+ Brake system
+ Engines
+ Fuel system
+ System of ignition
+ System of start
+ System of release
- Transmissions
+ Mechanical transmission (type 1)
+ Mechanical transmission (type 2)
- Automatic transmission (4 A/T)
+ General description
+ Diagnostics of the automatic transmission
+ Precautionary measures at diagnostics of malfunctions
- Visual survey
Main check of automatic transmission
Tables of diagnostics of malfunctions
Verification of the electrical circuitry of light
Codes of malfunctions
Check of linear pressure
Test in a garage
Test on the road
Manual test on the road
Delay check
Check of a motor brake
Check of range of "P"
+ Service out of a workshop
+ System of blocking of brakes
+ Check of system
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment
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Check of linear pressure
The purpose of this test is check of the working conditions of each part by means of measurement of pressure of liquid on the line of pressure of liquid. The following conditions are necessary for execution of the test of linear pressure:
Liquid of an automatic box has normal working temperature (70-80 °C / 158 – 176 °F).
Liquid is filled to the required level (between marks in the COMPLETELY HEATED-UP and NEPROGRETYY probe).
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1 — an opening for check of pressure of liquid
2 — the case pallet |
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Reliably put on the parking brake and apply the test device to wheels.
Attach the device for measurement of pressure of liquid to an opening for check of pressure of liquid in the transmission case. Special tool (A): 09925-37810.
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Having attached the device for check of pressure of liquid, check that there was no liquid leak. |
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1 — the case pallet
2 — an exhaust pipe |
Press up to the end a brake pedal, include idling of the engine and limit, and then check liquid pressure in situation "D" or "R".
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Do not leave the engine to work at speed limit more than 5 seconds. |
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G16 engine
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Power setting
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Linear pressure
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Situation "D"
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Situation "R"
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At a single speed
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3.9 – 4.4 kg/cm2
55 – 63 psi (pound / кв.дюйм)
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5.1 – 5.7 kg/cm2
73 – 81 psi
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On speed limit
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11.7 – 13.2 kg/cm2
166 – 188 psi
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14.2 – 16.7 kg/cm2
202 – 237 psi
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J20 engine
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Power setting
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Linear pressure
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Situation "D"
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Situation "R"
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At a single speed
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3.8 – 4.3 kg/cm2
54 – 61 psi (pound / кв.дюйм)
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5.3 – 5.9 kg/cm2
75 – 84 psi
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On speed limit
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9.7 – 11.2 kg/cm2
138– 159 psi
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12.9 – 15.5 kg/cm2
183– 220 psi
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G16 engine
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Power setting
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Linear pressure
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Situation "D"
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Situation "R"
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At a single speed
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3.9 – 4.4 kg/cm2
55 – 63 psi (pound / кв.дюйм)
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6.6 – 7.2 kg/cm2
94 – 102 psi
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On speed limit
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11.3 – 12.7 kg/cm2
161 – 181 psi
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14.7 – 22.7 kg/cm2
209 – 323 psi
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Results of check
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Possible reason
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Linear pressure is higher than standard level in each situation
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* Faulty valve of the regulator
* Faulty valve of a throttle
* The cable of a throttle of the automatic transmission is not adjusted
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Linear pressure is lower than standard level in each situation
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* Faulty coupling of the raising transfer
* Faulty oil pump
* Faulty valve of a throttle
* Faulty valve of the regulator
* The cable of a throttle of the automatic transmission is not adjusted
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Linear pressure is lower than standard level only in situation "D"
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* Leak of liquid from direct coupling
* Faulty coupling of the raising transfer
* Leak in a liquid pressure chain in situation "D"
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Linear pressure is lower than standard level only in situation "R"
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* Leak of liquid from direct coupling
* Faulty coupling of the raising transfer
* Leak of liquid from a backing brake
* Leak in a liquid pressure chain in situation "R"
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Transmission case stopper inhaling moment: 17 N • m (1.7 kg-m, 12.0 pounds feet).
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