Kia Carens. Manual - part 158

1. Start engine.

2. Check idle speed in P range, refer to emission control system.

Idle speed : 750~850 rpm (with parking brake applied)

3. Shift from N range to D range.

4. Use a stopwatch to measure time it takes from shifting until shock is felt.

5. Shift selector to N range and run engine at idle speed for at least one minute.

Make three measurements for each test and take average value.

6. Perform test for following shifts in same manner.

A. N → D range
B. N → 2 range

C. N → R range

Time lag : N → D range 0.5~0.6 second
Time lag : N → R range 0.6~0.7 second

Evaluation of time lag test

Condition

Possible cause

N→D shift

More than specification

Insufficient line pressure
Forward clutch slipping
One-way clutch No. 1 slipping
One-way clutch No. 2 slipping

Less than specification

N/D accumulator not operating properly
Excessive line pressure

N→2 range

More than specification

Excessive line pressure
Insufficient line pressure
Forward clutch slipping
2-4 brake band slipping
One-way clutch No. 1 slipping

Less than specification

1-2 accumulator not operating properly
Excessive line pressure

N→R shift

More than specification

Insufficient line pressure
Low and reverse brake slipping
Reverse clutch slipping

Less than specification

N/R accumulator not operating properly
Excessive line pressure

Line pressure test

This test measures line pressure as a means of checking hydraulic components and inspecting for oil leakage.

Preparation

1. Perform preparation procedure outlined in Stall Test.

2. Remove splash shield under front left bumper.

3. Connect SST (0K201 190 AA0) to line pressure inspection port (square-head "L" plug). It may be necessary to raise

car to get at inspection port.

Procedure

1. Start engine.

2. Check idle speed in P range, refer to emission control.

Idle speed : 750~850 rpm (with parking brake applied)

3. Shift selector lever to D range and read line pressure at idle.

Perform steps 4 and 5 within 5 seconds to prevent possible transaxle damage.

4. Depress brake pedal firmly with left foot and gradually depress accelerator pedal fully with the right foot.

5. Read line pressure as soon as engine speed becomes constant and release accelerator pedal.

Idling for at least one minute cools ATF and prevents deterioration.

6. Shift selector lever to N range and run engine at idle for at least one minute.

7. Read line pressure at idle and at engine stall speed for each range in same manner.

Specified line pressure

Range

Idle

Stall

D, 2, 1

56.98~127.98 (392.4~882.9, 4.0~9.0)

113.76~184.86 (784.8~1275.3, 8.0~13.0)

R

71.1~142.2 (490.5~981.5, 5.0~10.0)

199.08~270.18 (1373.4~1863.9, 14.0~19.0)

8. Install a new square-head "L" plug in inspection port, refer to line pressure test.

Tightening torque : 44~86 lb-in (5.0~9.8 N·m, 51~100 kg-cm)

Evaluation of line pressure test

Line pressure

Possible location of problem

Low pressure in every position

Worn oil pump
Fluid leaking from oil pump, control valve, or transaxle
case
Pressure regulator valve sticking
Linear solenoid valve sticking

Low pressure in D and 2 only

Fluid leaking from hydraulic circuit of forward clutch

Low pressure in R only

Fluid leaking from hydraulic circuit of low and reverse
brake or reverse clutch

Higher than specification

Pressure regulator valve stick or Linear solenoid valve
sticking

Road test

Preparation

1. Check and correct (as necessary) engine coolant, engine oil and ATF levels before testing.

2. Warm up engine thoroughly to raise ATF temperature to an operating level of 140~158°F (60~70°C).

3. Check idle speed and ignition timing in P position.

D range (Power mode)

1. Turn O/D switch from OFF to ON.

2. Quickly depress accelerator pedal fully, and verify that 1↔2, 2↔3 and 3↔4 upshift and downshift are obtained.

The shift points must be as shown in graph below.

3. Drive vehicle in third and second gear and verify that kickdown occurs for 4↔3, 3↔2, 2↔1 and that the shift points

are as shown in graph below

The torque converter clutch will not operate in following conditions :

1) The engine coolant temperature is below 144°F (62°C).
2) The closed throttle position switch is ON.
3) The brake switch is ON.

The transaxle fluid temperature is over 262°F (128°C) the torque converter clutch will operate in 3nd gear and 4th
gear.

D range (Econo mode)

1. Turn O/D switch from ON to OFF.

2. Gradually depress accelerator pedal, and verify that 1↔2, 2↔3 and 3↔4 upshift and downshift are obtained.

The shift points must be as shown in graph below.

3. Drive vehicle in third and second gear and verify that kickdown occurs for 4↔3, 3↔2, 2↔1 and that the shift points

are as shown in graph below.

The economic mode will not activate in the case that the engine temperature is bellow 114°F (62°C)