The Sonnax message has always been simple. If you’re going to fix the transmission right, you have to fix the valve body. To help rebuilders across the USA and Canada, Sonnax created the Roadshow program to deliver live instruction on valve body diagnostics and bore reaming.
Get started – or get a refresher – on valve body diagnosis and repair with this four-part video series presented by Sonnax Senior Technical Specialist, Randall Schroeder.
If you couldn’t make it to a Sonnax Roadshow, or have new techs at your shop, this series is for you! Learn how to troubleshoot valve bodies and evaluate repair options using the best techniques in the industry.Start Watching
In this first of a four-part video series, Sonnax Senior Technical Specialist Randall Schroeder walks you through the common causes and costly effects of valve and valve bore wear.
Part two of this video series reviews the methods historically used to identify bore wear and explains how and why vacuum testing provides reliable, repeatable results.
As rebuilders, the goal is to repair, reuse and recycle the valve body whenever possible. Sometimes, when bore wear is too aggressive to accept a drop-in repair, the only fix is to ream the bore and install an oversized valve, a practice pioneered by Sonnax.
Now that the valve body is shored up and you’ve verified your repairs, what else can you do to reduce costly comebacks? Find out in this final segment of our four-part series.