BOOST VALVE KIT (A4LD) HIGH RATIO
# 43782K

Pressure Regulator & Boost Valve Kit A4LD High Ratio

BOOST VALVE KIT (A4LD) HIGH RATIO

O-Ring style, large ratio

Symptoms:

  • Delayed Reverse
  • Soft upshifts
  • Low line pressure in Forward
  • Low line pressure in Reverse
  • Poor modulator control

Cause:
Worn boost sleeve allows reverse and/or TV pressure to cross leak or exhaust.

Correction:
Sonnax replacement boost valve kit restores hydraulic integrity to the bore.


Typical problems in vehicles with a Ford A4LD transmission include low line pressure in forward or reverse, soft upshifts, delayed reverse and poor modulator control. These complaints can often be caused by a worn boost sleeve, which allows reverse and/or TV pressure to cross leak or exhaust. Sonnax high ratio boost valve kit with O-rings replaces worn parts and offers higher line rise than the OE-style, low-ratio valve.

  • High-ratio valve with O-rings offers higher line rise than the OE valve
  • Manufactured from highly wear-resistant aluminum
  • Valve is hardcoat anodized to reduce wear

Contents:

  • Sleeve
  • Valve
  • O-Rings (2)

SONNAX Installation Instructions

Type of Product: Shift & Reprogramme Kits
Qty Needed:
Years:
Alternative #:
Ask for price