Symptoms:

  • Low line rise in Reverse
  • Low line rise
  • No line rise
  • 1-2 Flare
  • 2-3 Flare
  • Delayed Reverse

Cause:

A worn boost valve sleeve allows TV boost and reverse pressures to cross leak or leak to exhaust.

Correction:

This boost valve and sleeve kit restores the hydraulic integrity of the circuits with tight tolerances.

ATX

Boost Valve Kit
Part No. 86940-05K

View Instructions Find a Distributor

In vehicles with ATX transmissions reduced/no line rise, delayed reverse and flare 1-2, 2-3 upshift complaints can be caused by a worn boost sleeve. Wear at this sleeve allows leakage between the TV boost and reverse circuits. The Sonnax boost sleeve and valve kit 86940-05K eliminates this cross leakage and restores the hydraulic integrity of the circuit.

  • Sleeve is manufactured from highly wear-resistant aluminum to prevent wear.
  • Kit can be used to replace any of the OE boost ratio size variations.
  • Valve
  • Sleeve
  • ATX Boost Valve Kit 86940-05K
  • ATX Boost Valve Kit 86940-05K