December 30, 2013
Symptoms:
- Delayed engagement
- High stall speed
- Overheated converter
- Lube failures
- Poor performance & higher stall speeds
- Damaged converter
Cause:
Severe wear at the outboard spool of the lubricating pressure control valve can create delayed engagements and poor performance. Wear at the inboard spool results in high TCC and lube pressures which can cause converter damage and lube related failures.Correction:
Recondition the bore and install Sonnax oversized lubricating pressure control valve kit and calibrated spring to re-establish proper oil pressure limits.722.6
Oversized Lubricating Pressure Control Valve Kit
Part No. 68942-14K
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Tooling:
- F-68942-TL14
- VB-FIX
You need this if... View Instructions Find a Distributor
In Mercedes 722.6 units, severe wear of the lubricating pressure control valve can create delayed engagements, poor performance, converter damage and lube failures. Sonnax oversized lubricating pressure control valve kit 68942-14K salvages these valve bodies.
- Hardcoat anodized aluminum valve combats premature wear
- Added length at the outboard spool for additional valve support
- A new spring is included to allow proper calibration
- Valve
- Spring
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. See all Sonnax valve body layouts.
Mercedes 722.6 Valve Body Layout
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.
