Symptoms:

  • 3-4 Bump
  • 3-4 Flare
  • 3-4 Late
  • Gear ratio & solenoid codes
  • No 4th
  • No 5th
  • No 6th
  • E Clutch burned

Cause:

Bore wear at the "E" latch valve allows pressure escape that causes drivability problems.

Correction:

Stop pressure loss and restore normal clutch action by reconditioning the bore and installing Sonnax oversized "E" latch valve kit.

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.

ZF6HP26 Oversized "E" Latch Valve Kit Vacuum Test Locations