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Clutch Pressure Test

NOTE: Check clutch pressure at each clutch pressure tap on transaxle. See Fig 1.
  1. With engine off, remove pressure tap plug from appropriate clutch pressure tap on transaxle. See Fig 1. Attach pressure gauge to appropriate pressure tap. Tighten hose fitting to 13 ft. lbs. (18 N.m).
  2. Start and operate engine at 2000 RPM. Note clutch pressure reading with gearshift lever in appropriate position. See HYDRAULIC PRESSURE TEST SPECIFICATIONS  table.
  3. Ensure clutch pressure is within specification. If clutch pressure is not within specification, see HYDRAULIC PRESSURE TEST TROUBLE SHOOTING  table. Shut engine off.
  4. Remove pressure gauge set. Using NEW seal washer, install and tighten pressure tap plug to 13 ft. lbs. (18 N.m).
HYDRAULIC PRESSURE TEST SPECIFICATIONS

Application Gearshift Lever Position Standard psi (kPa)
Line Pressure "P" Or "N" (1) 130-139 (900-960)
Clutch Pressure
1st, 2nd, 3rd, 4th & 5th Clutch "1", "2", "D3" & "D5" Or "R" (2) 129-141 (890-970)
1st-Hold Clutch "1" (3) 110-120 (760-830)
(1) Service limit is 123 psi (850 kPa).
(2) Service limit is 122 psi (840 kPa).
(3) Service limit is 103 psi (710 kPa).
HYDRAULIC PRESSURE TEST TROUBLE SHOOTING

Application Probable Cause
Line Pressure
Low Or No Line Pressure Defective Torque Converter, Torque Converter Check Valve, Pressure Regulator Valve Or Oil Pump
Clutch Pressure
Low Or No 1st Clutch Pressure Defective 1st Clutch
Low Or No 2nd Clutch Pressure Defective 2nd Clutch
Low Or No 3rd Clutch Pressure Defective 3rd Clutch
Low Or No 4th Clutch Pressure in "D5" Defective 4th Clutch
Low Or No 5th Clutch Pressure in "D5" Defective 5th Clutch
Low Or No 5th Clutch Pressure in "R" Defective Servo Valve Or 5th Clutch
Low Or No 1st-Hold Clutch Pressure in "1" Defective 1st-Hold Clutch
Fig 1: Identifying Transaxle Pressure Taps
G00047734Courtesy of AMERICAN HONDA MOTOR CO., INC.