Hydraulic Pressure Test

Warm up the engine until the automatic transaxle fluid temperature is 80~100°C.
Jack up the vehicle so that the wheels are free to turn.
Connect the special tool (oil pressure gauge) to each pressure discharge port.
Measure the hydraulic pressure at each port under the conditions given in the standard hydraulic pressure table, and check that the measured values are within the standard value ranges.
If a value is outside the standard range, correct the problem while referring to the HYDRAULIC PRESSURE TEST DIAGNOSIS TABLE .

Fig 1: Identifying Special Tool (1 Of 3)
Courtesy of HYUNDAI MOTOR CO.

Fig 2: Identifying Special Tool (2 Of 3)
Courtesy of HYUNDAI MOTOR CO.

Fig 3: Identifying Special Tool (3 Of 3)
Courtesy of HYUNDAI MOTOR CO.

Standard Hydraulic Pressure Test

STANDARD HYDRAULIC PRESSURE TEST

Measurement condition			Standard hydraulic pressure kPa (psi)
Selector lever position	Shift position	Engine speed (rpm)	Under drive clutch pressure	Reverse clutch pressure	Overdrive clutch pressure	Low and reverse brake pressure	Second brake pressure	Torque converter pressure
P	-	2,500	-	-	-	310-390 (45~56)	-	250-350 (36-56)
R	Reverse	2,500	-	1,270-1,770 (185-256)	-	1,270-1,770 (185-256)	-	500-700 (185-256)
N	2,500	-	-	-	-	310-390 (45-56)	-	250-390 (36-56)
D	1st gear	2,500	1,010-1,050 (146-152)	-	-	1,010-1,050 (146-152)	-	500-700 (73-101)
	2nd gear	2,500	1,010-1,050 (146-152)	-	-	-	1,010-1,050 (146-152)	500-700 (73-101)
	3rd gear	2,500	590-690 (85-100)	-	590-690 (85-100)	-	-	450-650 (65-94)
	4th gear	2,500	-	-	590-690 (85-100)	-	590-690 (85-100)	450-650 (65-94)

* The values are subject to change according to vehicle model or condition