Tool Required VB-FIX Required

Printpartsummary
Symptoms:
  • Harsh downshifts
  • Overheated fluid
  • Poor fuel economy
  • RPM surge on coast
  • TCC apply & release concerns
  • TCC codes
Cause:

Bore wear at the TCC apply valve allows critical pressure loss that prevents proper TCC operation.

Correction:

Recover hydraulic control and restore normal TCC action by reconditioning the bore and installing Sonnax oversized TCC apply valve.

Tool Required VB-FIX Required

ZF5HP19

Oversized TCC Apply Valve

Part No.

85755-08

Oversized TCC Apply Valve
  • 85755-08_combo

  • Oversized TCC Apply Valve

  • 85755-08_details

Small_85755-08_combo Small_85755-08 Small_85755-08_details

ZF5HP19

Oversized TCC Apply Valve

Part No. 85755-08

Also fits VW/Audi 01V applications.

Complaint:

  • Harsh downshifts
  • Overheated fluid
  • Poor fuel economy
  • RPM surge on coast
  • TCC apply & release concerns
  • TCC codes

Cause:

Bore wear at the TCC apply valve allows critical pressure loss that prevents proper TCC operation.


Correction:

Recover hydraulic control and restore normal TCC action by reconditioning the bore and installing Sonnax oversized TCC apply valve.

Vehicles equipped with ZF5HP19 transmissions often encounter TCC troubles such as RPM surge, overheating, apply and release concerns and TCC codes. These problems can often be traced to excess bore wear at the TCC apply valve, which permits crucial control pressure to exhaust. Reconditioning the bore and installing Sonnax oversized TCC apply valve 85755-08 shores up the hydraulic integrity of the circuit for renewed TCC operation and control.

  • Hardcoat anodized aluminum valve combats premature wear
NOTE:

OE valve spool diameters MUST match dimensions noted in the illustration. This kit cannot be used in bores with any other size OE valve.

Required Tools

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.

  • Test Locations

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Contact a Sonnax Distributor to purchase this part.