4. Warm up the engine (the radiator fan comes on), then stop it and connect a tachometer.

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1 2003 Odyssey A/T Pressure Test Special Tools Required A/T clutch pressure gauge set or A/T pressure hose, 2,210 mm 07MAJ-PY4011A A/T pressure hose adapter 07MAJ-PY40120 Report a problem with this article 1. Before testing, be sure the transmission fluid is filled to the proper level. 2. Raise the vehicle, and make sure it is securely supported. 3. Allow all four wheels to rotate freely. 4. Warm up the engine (the radiator fan comes on), then stop it and connect a tachometer. 5. Connect the oil pressure gauges to the line pressure inspection hole (A), 2nd clutch pressure inspection hole (B), and 1st-hold clutch pressure inspection hole (C). Do not allow dust or other foreign particles to enter the holes while connecting the gauges. 1/5

2 6. Connect the oil pressure gauges to the 1st clutch pressure inspection hole (D), 3rd clutch pressure inspection hole (E), 4th clutch pressure inspection hole (F), and 5th clutch pressure inspection hole (G). 7. Start the engine, and run it at 2,000 rpm in the P or N position. 8. Measure line pressure at the line pressure inspection hole (A). NOTE: Higher pressure may be indicated if measurements are made in shift lever position other than N or P. Pressure Fluid Pressure Standard Service Limit Line (A) kpa ( kgf/cm, kpa (8.7 kgf/cm, Shift to the 1 position, and measure 1st clutch pressure at the 1st clutch pressure inspection hole (G) and 1st-hold clutch pressure at the 1st-hold clutch pressure inspection hole (C). 10. Shift to the 2 position, and measure 2nd clutch pressure at the 2nd clutch pressure inspection hole (B). 11. Shift to the P position, then press the brake pedal and hold it. 12. Shift to the 2 position, and release the brake pedal (the transmission should be in 2nd gear). 13. Press the accelerator very slowly to increase engine speed to 2,000 rpm gradually over 10 seconds, then hold it at 2,000 rpm. 2/5

3 14. Hold in the 2 position at 2,000 rpm, shift into N for 1 second, then shift to the D3 position (the transmission will shift to 3rd gear), and measure 3rd clutch pressure at the 3rd clutch pressure inspection hole (D). 15. Shift to the D position, and measure 4th clutch pressure at the 4th clutch pressure inspection hole (E), then in about 15 seconds, the transmission will shift to 5th gear. 16. Measure 5th clutch pressure at the 5th clutch pressure inspection hole (F). 17. Bring the engine back to an idle, then apply the brake to stop the wheels from rotating. 18. Shift to the R position. Raise the engine rpm to 2,000 rpm, and measure the reverse clutch pressure at the 5th clutch pressure inspection hole (F). Pressure Fluid Pressure Standard Service Limit 1st-hold clutch (C) kpa ( kgf/cm, st clutch (G) kpa ( kgf/cm, nd clutch (B) 3rd clutch (D) 4th clutch (E) 5th clutch (F) 710 kpa (7.2 kgf/cm, kpa (8.6 kgf/cm, If the measurements are out of service limit, problems and probable causes are listed in the table below: No or low line pressure Problem Probable causes Torque converter ATF pump Regulator valve Torque converter check valve No or low 1st clutch pressure 1st clutch No or low 2nd clutch pressure 2nd clutch No or low 3rd clutch pressure 3/5

4 3rd clutch No or low 4th clutch pressure 4th clutch No or low 5th clutch pressure 5th clutch No or low 5th clutch pressure in the R position Servo valve 5th clutch 20. Install the sealing bolts with the new sealing washers, and tighten the bolts to the specified torque. Do not reuse old sealing washers. Torque: 18 Nm (1.8 kgfm,13 lbfft) 4/5

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