Symptoms:

  • Bearing failure
  • Bushing failure
  • Planetary failure
  • Lube failures
  • Low converter pressure
  • Overheating
  • TCC codes & concerns
  • Rough idle in Reverse

Cause:

Bore wear allows critical converter/lube oil to leak to exhaust at both ends of the valve.

Correction:

The Sonnax oversized lubrication control valve kit restores the correct valve-to-bore clearances and prevents future wear.
  • ZF6HP21, ZF6HP28, ZF6HP34 Oversized Lubrication Control Valve Kit 95740-71K
  • ZF6HP21, ZF6HP28, ZF6HP34 Oversized Lubrication Control Valve Kit 95740-71K

You need this if...

ZF6HP21, ZF6HP28, ZF6HP34 Oversized Lubrication Control Valve Kit Vacuum Test Locations