January 14, 2014
Symptoms:
- Coastdown Neutral
- Downshift bind-ups
- Harsh downshifts
- Flare shifts
- Pressure control out-of-range codes
Cause:
Excess wear at clutch A or E control bore allows critical pressure loss that prevents proper clutch action.Correction:
The Sonnax oversized valve corrects circuit pressure loss and restores control timing of the clutch control valves.ZF6HP21,ZF6HP28,ZF6HP34
Oversized Clutch A & Clutch E Control Valve Kit
Part No.95740-72K
This kit fits either clutch A or E control bore locations in E-shift versions of ZF6HP21/28/34 (Generation 2) valve bodies only.
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Tooling:
- F-95740-TL72
- VB-FIX
You need this if... View Instructions Find a Distributor
Flare upshifts or downshift bind-ups are common problems in vehicles equipped with ZF6HP21/28/34 (Generation 2) transmissions. These problems can be accompanied by a coastdown neutral condition or pressure control out-of-range codes. The clutch control valves control clutch apply and release timing, and problems occur when the clutch control valves wear. Sonnax offers the oversized clutch A and clutch E control valve kit 95740-72K (E-shift version) to restore shift timing and vehicle drivability.
- Valves are hardcoat anodized to reduce wear
- Sleeve is made from highly wear-resistant aluminum
- O-ringed end plug improves sealing
Kit is NOT compatible with ZF6HP19/26/32 (Gen.1) units. To differentiate between Gen. 1 and Gen. 2 valve bodies, seeZF Identification Guide.
- Clutch Control Valve
- Boost Valve
- Boost Sleeve
- O-Ringed End Plug
- O-Rings (2)1 Extra
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on.看到所有Sonnax阀体outs.
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