5r55w s vactestlocations

2013 Sonnax Industries, Inc. 5R55W-S_VacTestLocations 02-28-13

800-843-2600 802-463-9722 F: 802-463-4059 www.sonnax.com Page 1

Ford 5r55W/STIME TESTED INDUSTRY TRUSTED

Click on Sonnax part numbers to see more information.

Critical Wear Areas & Vacuum Test Locations Note: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed to with an arrow. Springs are not shown for visual clarity. Low vacuum reading indicates wear.

20

25

15

0

10

5

30VACUUMTEST

20

25

15

0

10

5

30VACUUMTEST

Boost Valve AssemblyPoor line riseSlipping upshiftsBurnt bands/clutches

Converter Feed Limit ValveFront lube failureOverheat and/or delayed engagementIncreased stall RPM

Replace with Sonnax Part No.56947J-61K

Pressure regulator ValveDelayed engagementSoft shiftsInsufficient line riseErratic buzzHigh/uncontrollable line pressure in reverse

Install Sonnax Part No.56947J-09K

reverse Engagement ValveSlipping/no/delayed reverseBurned direct clutch

Replace with Sonnax Part No.56947J-29K

reverse Modulator ValveDelayed reverse engagementLoss of 4th or 5thBurned direct clutch

Replace with Sonnax Part No.56947J-23K

Intermediate Servo release ValveBurned intermediate band

VFS2 Modulator Control ValveLow line pressureSlipping upshiftsBurned overdrive bandBurned coast clutch

Replace with Sonnax Part No.56947J-19K

Coast Clutch Control Valve Burned coast clutch

Converter Clutch Back Pressure Valve Excessive TCC slipConverter codesBurned converter lining

TCC Control ValveExcess TCC slipTCC lining coming offOverheated converters

Restricted cooler flowCode 741

Replace with Sonnax Part No.56947J-05K

TCC Modulator Sleeve & Plunger AssemblyHigh TCC slip RPM at increasing loadSlip codesElevated fluid temperature

Replace with Sonnax Part No.56947J-01K OE Ratio56947J-03K Increased Ratio

TCC Modulator ValveCodes 741 or 1783Transmission overheatHigh line pressure

Replace with Sonnax Part No.56947J-15K

overdrive Servo Control ValveBurned overdrive band

Intermediate Servo Select Valve Burned intermediate bandBurned direct clutch

Forward Engagement ValveSlipping/no/delayed forwardBurned forward clutch

Replace with Sonnax Part No.56947J-26K

VFS1 PortLow line pressureSlipping shiftsNOTE: Check for wear on end plugs.

Solenoid Feed Limit ValveGear ratio codes 731 to 741No TCC applyFlooded solenoids

Replace with Sonnax Part No.56947J-61K

VFS1 Modulator Control ValveLow line pressureSlipping upshiftsBurned intermediate and/or low/reverse band

Replace with Sonnax Part No.56947J-19K

Test these together.

Plug casting valley with foam, putty or appropriately sized O-ring coated in assembly lube to isolate circuits.

reverse Servo Control ValveNo/delayed reverseBurned low/reverse band

direct Clutch Control ValveDelayed reverse engagementLoss of 4th or 5thBurned direct clutch

2013 Sonnax Industries, Inc. 5R55W-S_VacTestLocations 02-28-13

800-843-2600 802-463-9722 F: 802-463-4059 www.sonnax.com Page 2

Ford 5r55W/STIME TESTED INDUSTRY TRUSTED

oE Exploded View

116

115

114

113

112

111

110

109

101

102103

104

105

106

107

108

Lower Valve Body descriptions

I.D. No. Description

101TCC Control Valve (inboard)Fluid Cooler Bypass & Thermo Valve (outboard)

102

Converter Clutch Back Pressure Valve (inboard)Coast Clutch Control Valve (outboard)

103 VFS2 Modulator Control Valve

104 Intermediate Servo Release Valve

105 Direct Clutch Control Valve

106 Reverse Modulator Valve

107 Reverse Engagement Valve

108 VFS1 Modulator Control Valve

109Main Regulator Valve (inboard)Boost Valve & Sleeve (outboard)

110

Solenoid Feed Limit Valve (inboard)Coverter Feed Limit Valve (outboard)

111 Manual Valve

112 Rear Servo Control Valve

113 Intermediate Servo Select Valve

114Forward Engagement Control Valve

115 Overdrive Servo Control Valve

116TCC Modulator Valve (inboard)TCC Plunger Valve & Sleeve (outboard)