Sonnax 36948-19 Oversized Pressure Control Valve

The Sonnax 36948-19 oversized accumulator pressure control valve allows the worn valve body bore to be refurbished and restores accumulator pressure control in Ford 4R100 and E4OD transmissions. This precision-engineered valve is designed to address common shift quality issues caused by valve body bore wear.

Key Features:

• Hardcoat anodized aluminum valve combats premature wear
• Spring seat has been lengthened slightly to account for the oversized valve spools
• Oversized design allows rebuilding of worn valve body bores
• Restores proper accumulator pressure control for consistent shift quality

As the bore wears in Ford 4R100 and E4OD units, the accumulator pressure control valve will either remain inward due to loss of balance oil or stick outward. Inward position allows for full line to accumulator pressure resulting in firm shifts, while if the valve sticks outward toward the modulator sleeve and spring, accumulator pressure is low, resulting in soft, slide shifts. This Sonnax oversized valve resolves these wear-related issues and provides reliable, repeatable shift performance.

This valve is designed for use with reamer tool kit 36948-TL for proper bore preparation on E4OD, 4R100 and AX4N units. Professional installation recommended for proper transmission valve body reconditioning.