KIA RIO

since 2000 of release

Repair and car operation

8.2.3. Testing of collaboration of an automatic transmission and the engine on the motionless car (stall test)

GENERAL INFORMATION

Whether testing is carried out to define there is a proskalzyvaniye of elements of a friction or violation in work of hydraulic components.

Prevention

Do not uncover a radiator on the hot engine as leaving pairs can lead to strong burns.

Close a radiator cover thick rags and slowly unscrew a cover before emergence of hissing of leaving steam.

After the steam-out termination slowly turn on and uncover a radiator.

PERFORMANCE ORDER

1. Tighten the parking brake and establish a maple emphasis under lobbies and back wheels.

2. Start up the engine before transmission warming up to temperature 60~70°C.

3. Before testing check levels of all operational liquids and, if necessary, finish them to the normal.

4. Connect to the engine a tachometer.

Carrying out testing

PERFORMANCE ORDER

1. Start up the engine.

2. Check frequency of rotation of a cranked shaft of the engine idling and in a selector "R" position.

Frequency of rotation of a cranked shaft of the engine idling:
For Europe and Australia: 750-850 ^mines-1
The general: 700-800 ^mines-1

3. Move the selector lever to "R" position.

Prevention

For an exception of damage of a transmission execute steps 4 and 5 during 5 pages.

4. The left foot press against the stop a brake pedal, and the right foot smoothly press an accelerator pedal.

5. When frequency of rotation of a cranked shaft of the engine does not increase any more, read indications of a tachometer and release an accelerator pedal.

6. At the working engine move the selector lever to a position N and leave the engine to work at frequency of rotation of idling within, at least, one minute.

Prevention

Operation of the engine within, at least, one minute on frequency of rotation of idling cools transmission liquid and prevents deterioration of its properties.

Before each subsequent testing during sufficient time cool a transmission.

7. Similarly hold testing in the following positions of the lever of the selector:

      – positions D;
      – positions 2;
      – positions 1.

Frequency of rotation of a cranked shaft of the engine when testing collaboration of an automatic transmission and the engine on the motionless car (stall test): 2200-2800 ^mines-1.

Assessment of results of testing of collaboration of an automatic transmission and the engine on the motionless car (stall test).

Condition		Possible reason
Higher than the specification	In a position R and all ranges


		Transmission liquid insufficient pressure	The oil pump is worn-out
			Leaks in the oil pump, the regulating valve and / or a transmission case
			The valve of a regulator of pressure is blocked
	In a position D	Proskalzyvaniye of coupling of a forward course Proskalzyvaniye of unilateral coupling of 1 transfer Proskalzyvaniye of unilateral coupling of 2 transfers
	In a position 2	Proskalzyvaniye of a brake tape of 2-4 transfers
	In a position R	Proskalzyvaniye of a brake tape of forward bottom transfers and backing Proskalzyvaniye of backing coupling Carry out road test to define, whether there is a problem in forward bottom transfers and a backing or in backing couplings: – braking by the engine in a position 1 and backing coupling is felt; – braking by the engine in a position 1 both forward bottom transfers and a backing brake is not felt
Lower than the specification in a position R and in all range		The engine is not adjusted
		Proskalzyvaniye of hydrotransformer coupling