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A worn valve or valve body bore can result in incorrect pressures in the transmission, which may lead to poor performance or failure of the transmission. With the ...Read More
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Some common complaints associated with Ford 5R55W and 5R55S are high TCC slip RPMs under increasing loads, slip codes and converter apply or release concerns. Thes...Read More
Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressi...Read More
Sonnax Zip Kit 4R44E-5R55E-ZIP targets the root cause of multiple complaints by sealing the critical circuit pressure losses in the Ford 4R44E, 4R55E, 5R44E and 5R...Read More
Ford vehicles equipped with 5R55W and 5R55S transmissions often exhibit driveability concerns such as delayed engagement, harsh or soft shifting and erratic line p...Read More
Some common complaints associated with Ford 5R55W and 5R55S transmissions are high TCC slip RPMs under increasing loads, slip codes, and converter apply or release...Read More
Ford 5R55W and 5R55S transmissions commonly exhibit TCC engagement issues, gear ratio codes and overheat problems due to excessive wear in the solenoid feed limit ...Read More
Ford vehicles equipped with 5R55W and 5R55S transmissions frequently exhibit problems such as poor line rise, erratic line pressure, delayed engagement, no Reverse...Read More
In Ford 5R55S and 5R55W units, Reverse pressure from the manual valve is routed through the Reverse engagement valve prior to applying the direct clutch. Excessive...Read More
Rebuilders now have a no-hassle option of replacing worn or contaminated 5R55W and 5R55S solenoid blocks with Sonnax 56954L-RRP, 56954K-RRP and 56954N-RRP remanufa...Read More
Rebuilders now have a no-hassle option of replacing worn or contaminated 5R55N, 5R55W and 5R55S solenoid blocks with Sonnax 56954L-RRP, 56954K-RRP and 56954N-RRP r...Read More
In Ford 5R55S and 5R55W transmissions, the direct clutch is applied in Reverse, 4th and 5th Gear by the variable force PC-C solenoid. Fluid pressure from the solen...Read More
In Ford 5R55W and 5R55S valve bodies, some end plugs and their bores are often worn due to small movements of the end plug within the bore. This motion is caused b...Read More
Some common complaints associated with Ford 5R55N, 5R55W and 5R55S transmissions are high TCC slip, slip codes 741, TCC lining degradation and converter apply or r...Read More
Common complaints associated with Ford 5R55N, 5R55W and 5R55S transmissions are converter slip and code P0741. These complaints often occur at relatively low milea...Read More
In Ford 5R55W and 5R55S transmissions, bore wear at the VFS1 (PCA) and VFS2 (PCB) locations allows modulated line pressure to exhaust instead of feeding the overdr...Read More
Servo apply oil is fed through the center of the case bridge and into the servo pin, reacting on the cover side of the piston. As the case pin bore wears, this app...Read More
As the valve bore wears at the inboard spool, line pressure escalates with increased temperature and the pressure regulator valve does not stroke, reducing convert...Read More
’02–’08
’09-Later
In Ford 5R55N, 5R55S and 5R55W units, the OE flow control valve is designed to increase pump efficiency by rerouting excess line pressure back to the suction side ...Read More
Tool Kit for 56947J-80K, 56947J-81K and 56947J-82K.
Tool Kit for 56947J-61K
Tool Kit for 56947J-05K
