Watch this three-part video series featuring Sonnax Tech Specialist Jim Dial demonstrating how easy it is for shops to identify the root cause of transmission problems by vacuum testing.

 What is Vacuum Testing?

 Vacuum Test Stand Setup and Calibration

 How to Vacuum Test

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Vacuum Test Guides

Learn Locations to Test

Sonnax has done all the research for you. Vacuum testing guides show exactly where to test to determine if a valve and bore are worn out.

Identify Common Transmission Problems

Valves and common concerns associated with bore wear are clearly identified and described.

Select Parts for Repairs

Find a problem? Recommended Sonnax parts for successful repairs are listed, along with any required tooling.

Available Vacuum Test Guides:

Check back often to see the latest guides!
Vacuum Test Guide lineup

Vacuum Test Plates

Find Valve Body Problems 2X Faster with Vacuum Test Plates

Each plate seals over the entire valve body, leaving ports open at key test areas. Easy-to-follow instruction guides identify valves, symptoms of wear and the right Sonnax parts for repair.

Test Result Data Sheet

ZF6 Solenoid Test Manifold Kit

Identify Problem Solenoids Quickly & Cost-Effectively

For use with the Sonnax vacuum test stand, the solenoid test manifold kit is a quick, easy and affordable way to verify the internal sealing integrity of ZF6 Gen. 1 and Gen. 2 solenoids.

Test Result Data Sheet

Easily record and keep track of your results.

Evaluating test results requires establishing your own pass/fail standards in line with your customer's needs and shop warranty requirements.

Print or download your FREE Sonnax vacuum test data sheet to get started!

Test Result Data Sheet

Learn Everything You Need to Know About Vacuum Testing

Sonnax experts share full details and recommendations on how to master vacuum testing.

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Vacuum Test Stand Kit

A great alternative to building a custom testing rig.

Proper equipment and calibration is essential for accurate vacuum testing. The VACTEST-01K is a high quality kit which includes an assortment of testing tips, an anodized test stand to withstand years of use, plus easy-to-follow instructions for assembly, calibration and testing.

Vacuum Test Stand Kit