Transmission Parts Ford 4R75W 4R70W AODE 4R70E 4R75E Valve Body Valve / Sleeve

Symptoms:

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

Cause:

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

Correction:

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

4R70E, 4R70W, 4R75E, 4R75W, AODE

Main Pressure Regulator Valve
Part No. 76948-09

Fits '96-later units.

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Vehicles with Ford 4R70E, 4R70W, 4R75E, 4R75W 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 drivability concerns. Worn pressure regulator valve spools allowing pressure escape are a common problem in these units. Installing Sonnax main pressure regulator valve 76948-09 restores normal line pressure operation in all ranges.

If bore is excessively worn, install Sonnax oversized pressure regulator and boost valve kit 76948-17K. Sonnax valve replaces both styles of OE valve found in '96-later units.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves help center valve in bore to reduce side-loading
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

Note

'91–'95 PR valve and '96-later PR valve designs are not interchangeable. For '91–'95 PR valve, see 76948-01.

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.