Acura TSX / Honda Accord CL. Manual - part 934

 

  Index      Acura     Acura TSX 2004-2008 / Honda Accord CL 2006-2008 - service repair manual

 

Search            copyright infringement  

 

 

 

 

 

 

 

 

 

Content   ..  932  933  934  935   ..

 

 

Acura TSX / Honda Accord CL. Manual - part 934

 

 

Fig. 50: Identifying Main Valve Body Components 

Regulator Valve Body 

The regulator valve body contains the regulator valve, the torque converter check valve, lock-up shift valve, and 
the 1st and 3rd accumulators. 

Fig. 51: Identifying Regulator Valve Body Components 

Regulator Valve 

The regulator Valve maintains a constant hydraulic pressure from the ATF pump to the hydraulic control 
system, while also furnishing fluid to the lubrication system and torque converter. The fluid from the ATF 

 

2004 Acura TSX 

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

  

 

pump flows through B and C. Fluid entering from B flows through the valve orifice to the A cavity. This 
pressure of the A cavity pushes the regulator valve to the right side, and this movement of the regulator valve 
uncovers the fluid port to the torque converter and the relief valve. The fluid flows out to the torque converter 
and the relief valve, and the regulator valve moves to the left side. According to the level of the hydraulic 
pressure through B, the position of the regulator valve changes, and the amount of fluid from C through torque 
converter also changes. This operation is continued, maintaining the line pressure. 

Fig. 52: Identifying Regulator Valve 

NOTE:

When used, "left" or "right" indicates direction on the illustration below.

 

2004 Acura TSX 

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

  

 

Fig. 53: Regulator Valve Operation 

Increases in hydraulic pressure according to torque are performed by the regulator valve using stator torque 
reaction. The stator shaft is splined with the stator in the torque converter, and its arm end contacts the regulator 
spring cap. When the vehicle is accelerating or climbing (Torque Converter Range), stator torque reaction acts 
on the stator shaft, and the stator arm pushes the regulator spring cap in the direction of the arrow in proportion 
to the reaction. The stator reaction spring compresses, and the regulator valve moves to increase the line 
pressure which is regulated by the regulator valve. The line pressure reaches its maximum when the stator 
torque reaction reaches its maximum. 

 

2004 Acura TSX 

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

  

 

Fig. 54: Locating Regulator Valve 

Servo Body 

The servo body contains the servo valve, the shift valve D, accumulators for 2nd, 4th, and 5th, and shift 
solenoid valves for A, B, C, D, and E. 

Fig. 55: Identifying Servo Body Components

 

2004 Acura TSX 

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

  

 

 

 

 

 

 

 

 

Content   ..  932  933  934  935   ..