Acura RL. Instruction — page 274

17. Turn the engine off, then disconnect the oil pressure gauges from the 1st clutch pressure, 1st-hold clutch

pressure, and 2nd clutch pressure inspection ports.

18. Install the sealing bolts to the 1st clutch pressure, 1st-hold clutch pressure, and 2nd clutch pressure

inspection ports with the new sealing washers, and tighten the bolts to 18 N.m (1.8 kgf.m, 13 lbf.ft). Do
not reuse the old sealing washers.

19. Connect the oil pressure gauge to the 3rd clutch pressure inspection port (E) and the 5th clutch pressure

inspection port (G).

Fig. 196: Identifying 3rd Clutch Pressure Inspection Port And 5th Clutch Pressure Inspection Port
Courtesy of AMERICAN HONDA MOTOR CO., INC.

20. Connect the oil pressure gauge to the 4th clutch pressure inspection port (F).

Pressure

Fluid Pressure

Standard

Service Limit

1st clutch (B) 2nd clutch (D)

940-1,020 kPa (9.6-10.4 kgf/cm

2

,

140-148 psi)

890 kPa (9.1 kgf/cm

2

, 130 psi)

1st-hold clutch (C)

680-760 kPa (6.9-7.7 kgf/cm

2

,

98-110 psi)

630 kPa (6.4 kgf/cm

2

, 91 psi)

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission — RL

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Page 267

© 2005 Mitchell Repair Information Company, LLC.

Fig. 197: Identifying 4th Clutch Pressure Inspection Port
Courtesy of AMERICAN HONDA MOTOR CO., INC.

21. Start the engine with the transmission in P while pressing the brake pedal.

22. Shift to M, and release the brake pedal; the transmission is in 1st gear.

23. Press the accelerator pedal to increase the engine speed to 2,500 rpm, then shift to 2nd gear.

24. Release the accelerator pedal; the engine speed decreases to 1,000 rpm with the transmission in 2nd gear.

25. Press the accelerator pedal very slowly so that the engine speed increases to 2,000 rpm in 5 seconds, then

hold the accelerator. Shift to 3rd gear, and measure the 3rd clutch pressure at the 3rd clutch pressure
inspection port while holding the engine speed at 2,000 rpm.

26. Shift to 4th gear, and measure the 4th clutch pressure at the 4th clutch pressure inspection port while

holding the engine speed at 2,000 rpm.

27. Measure the 5th clutch pressure at the 5th clutch pressure inspection port while holding the engine speed

at 2,000 rpm.

FLUID PRESSURE SPECIFICATION

28. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.

29. Shift to R, then release the brake pedal. Raise the engine speed to 2,000 rpm, and measure the 5th clutch

pressure at the 5th clutch pressure inspection port.

FLUID PRESSURE SPECIFICATION

Pressure

Fluid Pressure

Standard

Service Limit

3rd clutch (E) 4th clutch (F) 5th
clutch (G)

940-1,020 kPa (9.6-10.4 kgf/cm

2

,

140-148 psi)

890 kPa (9.1 kgf/cm

2

, 130 psi)

Pressure

Fluid Pressure

Standard

Service Limit

5th clutch (G) in R

940-1,020 kPa (9.6-10.4 kgf/cm

2

,

140-148 psi)

890 kPa (9.1 kgf/cm

2

, 130 psi)

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission — RL

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Page 268

© 2005 Mitchell Repair Information Company, LLC.

30. Turn the engine off, then disconnect the oil pressure gauges from the 3rd, 4th, and 5th clutch pressure

inspection ports.

31. Install the sealing bolts to the 3rd, 4th, and 5th clutch pressure inspection ports with the new sealing

washers, and tighten the bolts to 18 N.m (1.8 kgf.m, 13 lbf.ft). Do not reuse the old sealing washers.

32. If any of the pressures out of the service limit, refer to the problems and probable causes listed in the

table.

PROBLEMS AND PROBABLE CAUSES

33. Install the air cleaner (see AIR CLEANER REMOVAL/INSTALLATION ).

34. Install the splash shield.

SHIFT SOLENOID VALVE TEST AND REPLACEMENT

1. Connect the HDS to the DLC (A).

Problem

Probable causes

No or low line pressure

Torque converter

ATF pump

Regulator valve

Torque converter check valve

Low fluid level

Clogged ATF strainer

No or low 1st clutch pressure

1st clutch

O-rings

No or low 2nd clutch pressure

2nd clutch

O-rings

No or low 3rd clutch pressure

3rd clutch

O-rings

No or low 4th clutch pressure

4th clutch

O-rings

No or low 5th clutch pressure

5th clutch

O-rings

No or low 5th clutch pressure in R

Servo valve

5th clutch

O-rings

No or low 1st-hold clutch pressure

1st-hold clutch

rings

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission — RL

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Page 269

© 2005 Mitchell Repair Information Company, LLC.

Fig. 198: Identifying Data Link Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. Select SHIFT SOLENOID A, B, C, and D in the MISCELLANEOUS TEST MENU on the HDS.

3. Check that shift solenoid valves A, B, C, and D operate with the HDS. A clicking sound should be heard.

If a clicking sound is heard, the valves are OK.

If no clicking sound is heard, go to step 4.

4. The shift solenoid test is finished if the tests are OK. If no sound is heard, remove the shift solenoid

valve, and test the solenoid valve.

5. Make sure you have the anti-theft codes for the audio system and the navigation system.

6. Remove the battery trim and left upper fender cover.

7. Disconnect the negative terminal from the battery, then disconnect the positive terminal.

8. Remove the battery hold-down bracket, and remove the battery and battery tray.

9. Remove the air cleaner (see AIR CLEANER REMOVAL/INSTALLATION ).

10. Remove the battery base.

11. Remove the nuts securing the shift cable bracket (A).

NOTE:

If the HDS does not communicate with the PCM, troubleshoot the DLC
circuit; ’05-07 models (see ’05-07 MODELS ), ’08 model (see ’08 MODEL ).

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission — RL

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