boost valve kit sonnax medium ratio 4l30e ml4 Transmission_F4 steel plates serve a dual

steel plates serve a dual role — not only as reaction surfaces

A540H 1988-1991

TAURUS 2013-2016 6 SP 4WD V6 3

or pre-1986 Ford vehicles requiring Type F ATF

boost valve kit sonnax medium ratio 4l30e ml4 Transmission_F4 steel plates serve a dualBoost Valve Kit for 4L30 E Medium Ratio, OE Code 448 In GM 4L30 E units, the original equipment (OE) boost valves are constructed from steel, while the sleeves are crafted from aluminum. As time passes, the valve grinds against the sleeve, leading to boost pressure leakage. This wear and tear results in reduced line pressure during boost, often culminating in burnt clutches. The Sonnax boost valve 54200 01K is designed to re establish precise control