Ford 4R44E, 5R44E, 4R55E, 5R55E 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. Each layout:
- Displays an exploded view location guide for individual valve trains
- Identifies symptoms and recommended solutions for quality rebuilds
- Provides active links to view specific part details
- Lists any tools/fixtures required for part installation
- Illustrates correct part orientation
With more than 60 layouts to choose from, these convenient, go-to reference guides are valuable resources for any shop.
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Related Units
Related Parts
Required
Recommended
4R44E, 4R55E, 5R44E, 5R55E
Pressure Regulator Sleeve Kit 37947-05K
-
Helps cure:
- Delayed engagement
- Poor shift quality
- Low line pressure
- High line pressure
- Overheating
- Low cooler flow at idle
Required
Recommended
4R44E, 4R55E, 5R44E, 5R55E
TCC Modulator Sleeve Kit 37947-07K
-
Helps cure:
- Code 1741
- No lockup
- Engine stall on FWD engagement
- Poor converter fill & delayed engagements
- Low cooler flow
Required
Recommended
4R44E, 4R55E, 5R44E, 5R55E
TCC Regulator Sleeve Kit 37947-09K
-
Helps cure:
- Code 628, 1741
- TCC apply concerns
- TCC cycling
- TCC surge
- High TCC slip RPM
- Overheated fluid
- Overheated converter
Required
Recommended
4R44E, 4R55E, 5R44E, 5R55E
EPC & Engagement Control Kit 37947-11K
-
Helps cure:
- 2nd Gear starts
- Flare on 1-2 or 2-3 shift on 4R, or 2-3, 3-4 on a 5R
- No Reverse
- Poor shift quality
- Delayed Forward
- TCC slip
- Code P0741
Required
Recommended
4R44E, 4R55E, 5R44E, 5R55E
Oversized Coast Clutch Valve Kit 37947-33K
-
Helps cure:
- No engine braking in D3 to low
- No 4th (4R44E/55E)
- No 2nd (5R44E/55E)
- No 5th (5R44E/55E)
- No coast clutch apply
Required
Recommended
4R44E, 4R55E, 5R44E, 5R55E
TCC Regulator Valve Spring Kit 37947-46K
Matches 4.0L calibration
-
Helps cure:
- Code P0741
- Low TCC apply pressure
- Low spring rate on 2.3L TCC regulator valve
- Damaged valve body casting
Required
Recommended
Required
Recommended
4R44E, 4R55E, 5R44E, 5R55E
Elevated Pressure Main Pressure Regulator Spring 56947-17
-
Helps cure:
- Soft shifts
- Poor shift quality
- Low base line pressure
Required
Recommended
Required
Recommended
4R44E, 4R55E, 5R44E, 5R55E
Oversized Solenoid Regulator Valve Kit 37947-48K
-
Helps cure:
- Wrong gear starts
- Solenoid performance codes
- TCC codes & concerns
- Harsh shifts
- Soft shifts
- Burnt TCC apply components
- Burnt clutches
While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.