Acura RL. Manual - part 215

6. CPC valve B defective  

7. Foreign material in 

separator plate orifice  

8. Shift valve C defective  

9. 3rd accumulator defective  

10. 4th accumulator defective  

11. 3rd clutch defective  

12. 4th clutch defective  

valve is stuck, inspect the 
CPC valves.  



Check for a clogged orifice in 
the transmission fluid pressure 
switch connector. If the 
orifice is clogged, remove it 
and clean the connector.  



Check the 3rd and 4th clutch 
pressures.  



Inspect the clutch piston, 
clutch piston check valve, and 
the O-rings. Check the spring 
retainer for wear and damage. 
Inspect the clearance between 
the clutch end-plate and the 
top disc. If the clearance is out 
of tolerance, inspect the clutch 
discs and plates for wear and 
damage, and inspect the 
clutch wave-plate height. If 
the discs and flat-plates are 
worn or damaged, replace the 
discs and flat-plates as a set. If 
the wave-plate height is out of 
tolerance, replace the wave-
plate. If the discs and plates 
are OK, adjust the clearance 
with the clutch end-plate.  

Excessive shock or flares on 4-5 
upshift or 5-4 downshift

1. Shift solenoid valve C 

defective  

2. A/T clutch pressure control 

solenoid valve B defective  

3. A/T clutch pressure control 

solenoid valve C defective  

4. CPC valve B defective  

5. CPC valve C defective  

6. Foreign material in 

separator plate orifice  

7. Shift valve C defective  

8. Shift valve E defective  

9. Kick-down valve or kick-

down short valve defective  

10. 4th accumulator defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the O-rings, and check 
the shift solenoid valve for 
seizure.  



Inspect the A/T clutch 
pressure control solenoid 
valve body gasket and the 
ATF feed pipes for wear and 
damage. If the A/T clutch 
pressure control solenoid 
valve is stuck, inspect the 
CPC valves.  



Check the 4th and 5th clutch 
pressures.  



Inspect the clutch piston, 
clutch piston check valve, and 

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:10 PM

Page 31 

© 2005 Mitchell Repair Information Company, LLC. 

11. 5th accumulator defective  

12. 4th clutch defective  

13. 5th clutch defective  

O-rings. Check the spring 
retainer for wear and damage. 
Inspect the clearance between 
the clutch end-plate and the 
top disc. If the clearance is out 
of tolerance, inspect the clutch 
discs and plates for wear and 
damage, and inspect the 
clutch wave-plate height. If 
the discs and flat-plates are 
worn or damaged, replace the 
discs and flat-plates as a set. If 
the wave-plate height is out of 
tolerance, replace the wave-
plate. If the discs and plates 
are OK, adjust the clearance 
with the clutch end-plate.  

Noise from transmission in all 
shift lever positions

1. ATF pump worn or binding 

2. Idler gears worn or 

damaged  

3. Thrust washer seized up, 

worn, or damaged  

Improper alignment of ATF pump 
and the torque converter housing 
may cause the ATF pump seizure. 
The symptoms are mostly an rpm-
related ticking noise or a high 
pitched squeak.

Vehicle does not accelerate 
above 31 mph (50 km/h)

Torque converter one-way clutch 
defective

Replace the torque converter.

Vibration in all shift lever 
positions

Drive plate defective or 
transmission misassembled



Check for a 
misinstalled/damaged drive 
plate.  



Adjust the engine and 
transmission mounts.  



Check the stall speed.  

Shift lever does not operate 
smoothly

1. Transmission range switch 

defective or out of 
adjustment  

2. Shift cable broken or out of 

adjustment  

3. Connection between shift 

cable and transmission or 
body is worn  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the transmission range 
switch. If the transmission 
range switch is faulty, replace 
it. If the transmission range 
switch is out of adjustment, 
adjust it and the shift cable.  



Check for a loose shift cable 
at the shift lever and the 
transmission control lever.  

Transmission does not shift into 
P

1. Shift cable broken or out of 

adjustment  



Check for a loose shift cable 
at the shift lever and the 
transmission control lever.  

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:10 PM

Page 32 

© 2005 Mitchell Repair Information Company, LLC. 

2. Connection between shift 

cable and transmission or 
body is worn  

3. Park mechanism defective  



Check the park pawl, control 
shaft, and park lever link for 
wear and damage. Check if 
the control shaft lever pin is 
disengaged from the manual 
valve guide.  

Torque converter clutch does not 
disengage

1. Shift solenoid valve D 

defective  

2. A/T clutch pressure control 

solenoid valve C defective  

3. Torque converter clutch 

piston defective  

4. Lock-up shift valve 

defective  

5. Lock-up control valve 

defective  

6. Lock-up timing valve 

defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the A/T clutch 
pressure control solenoid 
valve C body gasket for wear 
and damage. If the A/T clutch 
pressure control solenoid 
valve C is stuck, inspect the 
CPC valves.  

Torque converter clutch does not 
operate smoothly

1. Shift solenoid valve D 

defective  

2. A/T clutch pressure control 

solenoid valve C defective  

3. Lock-up clutch piston 

defective  

4. Torque converter check 

valve defective  

5. Lock-up shift valve 

defective  

6. Lock-up control valve 

defective  

7. Lock-up timing valve 

defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the A/T clutch 
pressure control solenoid 
valve C body gasket for wear 
and damage. If the A/T clutch 
pressure control solenoid 
valve C is stuck, inspect the 
CPC valves.  



Center all engine mounts.  

Torque converter clutch does not 
engage

1. Shift solenoid valve D 

defective  

2. A/T clutch pressure control 

solenoid valve C defective  

3. Input shaft (mainshaft) 

speed sensor defective  

4. Output shaft (countershaft) 

speed sensor defective  

5. Torque converter clutch 



Check for a stored DTC, and 
check for loose connectors.  



Inspect the A/T clutch 
pressure control solenoid 
valve C body gasket for wear 
and damage. If the A/T clutch 
pressure control solenoid 
valve C is stuck, inspect the 
CPC valves.  

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:10 PM

Page 33 

© 2005 Mitchell Repair Information Company, LLC. 

COMPONENT LOCATION INDEX 

piston defective  

6. Torque converter check 

valve defective  

7. Lock-up shift valve 

defective  

8. Lock-up control valve 

defective  

A/T gear position indicator does 
not indicate shift lever positions

1. Transmission range switch 

defective or out of 
adjustment  

2. Shift cable broken or out of 

adjustment  

3. Connection between shift 

cable and transmission or 
body is worn  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the transmission range 
switch. If the transmission 
range switch is faulty, replace 
it. If the transmission range 
switch is out of adjustment, 
adjust it and the shift cable.  



Check for a loose shift cable 
at the shift lever and the 
transmission control lever.  

Speedometer and odometer do 
not work

Output shaft (countershaft) speed 
sensor defective

Check for a stored DTC, and check 
for loose connectors.

Engine does not rev to high rpm, 
and the transmission upshifts at 
low rpm (engine at normal 
operating temperature)

VTEC rocker arms defective

Check the engine rocker arms.

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:10 PM

Page 34 

© 2005 Mitchell Repair Information Company, LLC.