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AUTOMATIC TRANSMISSION DIAGNOSIS AUTOMATIC TRANSMISSION 23A-28 STANDARD HYDRAULIC PRESSURE TABLE <F5A5A> NOTE: When the torque converter pressure is measured, the engine speed should be 1,500 r/min or less. HYDRAULIC PRESSURE TEST DIAGNOSIS TABLE MEASUREMENT STANDARD HYDRAULIC PRESSURE kPa SELECT- SHIFT ENGINE UNDERDRIVE REVERSE OVERDRIVE DIRECT LOW- SECOND TORQUE P − 2,500 − − − − 260 − 360 − 260 − 360 R Rev. 2,500 − 1270 −1770 − − 1270 −1770 − 500 − 730 N − 2,500 − − − − 260 − 360 − 220 − 360 Sport 1st 2,500 980 −1050 − − − 980 − 1050 − 500 − 730 2nd 2,500 980 −1050 − − − − 980 − 1050 500 − 730 3rd 2,500 780 − 900 − 780 − 900 − − − 450 − 720 4th 2,500 780 − 900 − 780 − 900 780 − 880 − − 450 − 720 5th 2,500 − − 780 − 900 780 − 880 − 780 − 880 450 − 720 SYMPTOM PROBABLE CAUSE All hydraulic pressures are high. Malfunction of the regulator valve All hydraulic pressures are low. Malfunction of the oil pump Clogged internal oil filter Clogged oil cooler Malfunction of the regulator valve Malfunction of the relief valve Incorrect valve body installation Improperly installed solenoid valves Damaged solenoid valve O-rings Hydraulic pressure is abnormal Malfunction of the regulator valve Clogged orifice Incorrect valve body installation Hydraulic pressure is abnormal Malfunction of the overdrive solenoid valve Malfunction of the overdrive pressure control valve Malfunction of the regulator valve Malfunction of the switch valve Clogged orifice Incorrect valve body installation |