AODE, 4R70W, 4R75W

AODE, 4R70W, 4R75W
D i s t r i b u t o r
D a t a S h e e t
PART NUMBER 76948-31
COMPLAINT
Cause
TCC slippage or loss of lockup
• Codes 628, 741, 1741 or 1744 • Reduced cooler flow
SECONDARY COMPLAINTs
Excessive wear at the bypass clutch
control valve bore.
COrrection
Oversized Bypass
Clutch Control Valve
Ream the valve bore and install the
Sonnax improved oversized valve to
replace the OEM version.
Spring
Oversized
Bypass Clutch
Control Valve
Bypass Clutch Control
Sleeve & Plunger Assembly
Also available 76948-04K
Retainer Clip
TOOL
1 Oversized Bypass Clutch
Control Valve
R
EQ
Jig
D
76948-31
UIRE
Roughing
& Finishing
Reamers
76948-TL6
1 Roughing Reamer
1 Finishing Reamer
1 Reamer Jig
Sonnax Part Summary
TCC codes, shuttle or loss of lockup can indicate a bypass control problem. A worn bypass clutch
control bore or valve will lower converter and TCC apply pressure. The Sonnax oversized bypass
clutch control valve and tool kit salvages affected valve bodies, allowing you to ream the bore to
accept the oversized valve, restoring proper function to the bypass control circuit.
Features & Benefits
Salvages valve bodies with wear of the bypass clutch control bore or valve.
Corrects TCC codes, shuttle/loss of lockup, converter overheat and reduced/lost cooler flow.
Provides increased valve support for longer service life.
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©2007 Sonnax Industries, Inc.
76948-31 Rev:-, 76948-31
09-07-07
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com • info@sonnax.com
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