Transmission Parts Ford 4R70W AODE Valve Body Valve / Sleeve

Symptoms:

Poor shift quality
Soft shifts
Low line rise
Erratic buzz
Premature clutch failure
Premature band failure
Uncontrolled pressure in Reverse
Low Reverse boost

Cause:

Regulator valve wear allows critical fluid loss that results in driveability concerns.

Correction:

Renew pressure regulator performance and revive line pressure control by installing Sonnax main pressure regulator valve.

4R70W, AODE

Main Pressure Regulator Valve
Part No. 76948-01

Replaces '95-Earlier 4-spool valves only. DOES NOT replace 3-spool valves.

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Vehicles with 4R70W and AODE transmissions often have erratic line pressure, poor line rise and/or throttle-sensitive buzz. This can result in harsh or soft shifts and band/clutch failure as well as other driveability concerns. Worn pressure regulator valve spools allowing pressure escape are a common problem in these units. Installing Sonnax main pressure regulator valve 76948-01 restores normal line pressure operation in all ranges.

If bore is excessively worn, install Sonnax oversized pressure regulator and boost valve kit 76948-16K.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves help center valve in bore to reduce side-loading

Learn More About Zip Valve™ Drop-In Repairs

Note

'91–'95 PR valve and '96-later PR valve designs are not interchangeable. For '96-later PR valve, see 76948-09.

Valve Body Layout

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.