JF016E, RE0F10D, RE0F10F, CVT8

Tooling required

Symptoms:

• Chatter on acceleration
• High line pressure
• Low line pressure
• Pulley breakage
• Slips in Forward & Reverse

Cause:
Excess bore and valve train component wear allows critical oil volume/pressure to escape the circuit. Wear about the smaller valve spool can lead to excess oil pressure at the primary pulley actuator. Conversely, wear about the larger spools and end plug may cause insufficient oil pressure to the primary pulley actuator.

Correction:
Restore proper hydraulic operation by refurbishing the bore and installing Sonnax's oversized primary pulley reducing valve kit.

In Jatco/Nissan JF016E (RE0F10D) units, the primary pulley reducing valve controls and maintains oil pressure to the primary pulley actuator as influenced by the primary pulley solenoid. A worn bore or valve spool can cause loss of oil pressure control to the primary pulley actuator. Symptoms that may indicate degraded primary pulley reducing control are: chatter on acceleration, high or low pressure at the primary pulley actuator, pulley breakage and slippage in Forward and Reverse. Reconditioning the bore and installing this Sonnax oversized primary pulley reducing valve kit can restore optimal oil pressure to the primary pulley actuator.

• Hardcoat anodized aluminum valve combats premature wear
• Oversized valve paired with OE spring matches OE pressure regulation algorithm

Contains:

• Valve
• End Plug

C18784K Instruction Sheet