Symptoms:

  • 1-2 Flare
  • 5-6 Flare
  • B1 Clutches burned
  • Low line pressure
  • Delayed engagement
  • Harsh engagement
  • B2 Clutches burned

Cause:

Bore wear in the B1/B2 apply control plunger valve sleeve allows line pressure to leak to exhaust at the B1 apply valve bore or line pressure and Reverse pressure to cross leak at the B2 apply valve bore. The result is inappropriate apply pressure at the B1 and B2 clutches.

Correction:

Sonnax drop-in B1/B2 apply control plunger valve kit restores hydraulic control due to wear at either the B1 or B2 apply control plunger sleeve location, restoring proper clutch control to eliminate drivability issues and clutch distress.

AS66RC, AS69RC

B1/B2 Apply Control Plunger Valve Kit
Part No. 122740-01K

You need this if... View Instructions Find a Distributor

A worn B1 or B2 apply control plunger valve sleeve in the Aisin Seiki AS66RC and AS69RC transmissions can cause shift flares, delayed or harsh engagements, low line pressure and burnt B1 and B2 clutches. Line pressure is routed to the B1 and B2 plunger valve to aid in proper apply control of the B1 and B2 clutches.

If the sleeve is worn at the B1 location, line pressure exhausts which will result in 1-2 and 5-6 shift flares, low line pressure and a burned B1 clutch. If the sleeve is worn at the B2 location, a cross-leak between line pressure and Reverse pressure is created, which can result in delayed or harsh Foward and Reverse engagements and a burned B2 clutch.

Sonnax B1/B2 apply control plunger valve kit 122740-01K restores hydraulic control at either location to address these issues.

  • Hardcoat anodized aluminum plunger valve combats premature wear
  • Upgraded sleeve material is highly wear-resistant to increase life
  • Sleeve/plunger valve engagement lengthened to provide better stability and durability
  • Drop-in Zip Valve parts install quickly and easily
  • Plunger Valve
  • Plunger Sleeve
  • AS66RC, AS69RC B1/B2 Apply Control Plunger Valve Kit 122740-01K
  • AS66RC, AS69RC B1/B2 Apply Control Plunger Valve Kit 122740-01K
  • AS66RC, AS69RC B1/B2 Apply Control Plunger Valve Kit 122740-01K

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

AS66RC, AS69RC B1/B2 Apply Control Plunger Valve Kit Vacuum Test Locations
AS66RC, AS69RC B1/B2 Apply Control Plunger Valve Kit Vacuum Test Locations