Subaru Forester occasional stalling and unusual RPMs with loss of ABS, CVT transmission valve body replacement needed on Subaru Forester

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Subaru Forester owners report experiencing occasional stalling and unusual RPM fluctuations, particularly at stop signs or on inclines, which may indicate underlying issues with the CVT transmission. These owners have noted a drop in RPMs upon coming to a full stop, leading to stalling. Problems with the CVT transmission valve body have been cited, with some owners requiring replacements due to chain slipping and pulley wear. In older vehicles, valve body replacements may only offer a temporary fix, as the higher pressure from new components could lead to compatibility issues. Additionally, issues with torque converter clutch solenoids found in the valve body have resulted in costly replacements for some owners. While software updates have been implemented to address stalling concerns, some owners still experience shuddering, which is often considered a normal characteristic of CVTs. It is recommended that owners experiencing these symptoms have their CVT transmission system inspected by a qualified technician to assess the need for repair or replacement.

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