Abnormal Underdrive Clutch Pressure Only

The following are possible causes for this condition:

• Faulty oil seal "K", "L", "M" or "Q". For oil seal locations, see Figure and Figure .
• Faulty underdrive solenoid valve.
• Faulty underdrive pressure control valve.
• Faulty check ball.
• Clogged orifice.
• Incorrectly installed valve body.