Diagnose an Ailing Transmission with Sonnax Vacuum Test Plate Kits

Transmission valve bodies are one of the least understood components on your vehicle, and for good reason. All of those valves, solenoids, bands, and clutch packs are connected to a structure comprised of hundreds of maze-like passageways that somehow makes your vehicle’s transmission shift from one gear to another. It’s daunting to think about. 

Instead of thinking about how valve bodies work, a better approach would be what to look for when they’re not working right. For instance, loud noises coming from the transmission could be valve body related. The same holds true if the transmission is slipping, stops downshifting, has delayed shifts (especially when manually changing gears with the shifter), or erratic shifting (the transmission shifts unnecessarily and has difficulty holding the right gear). 

Not so long ago your only recourse to fixing your transmission was to take it to a shop and let a pro diagnose the issue. But thanks to Sonnax, you can test and diagnose valve body problems at home. Its Vacuum Test Plate Kits are ideal for fast, easy testing. They include a clear test plate with a silicone pad seal that fits securely over the entire valve body casting to seal all of the critical passages at once. Strategically located ports identify recommended test locations. An easy-to-follow instruction booklet identifies ports, valves, symptoms of wear, the recommended course of action for repair, and replacement parts that will be needed. 

You can find Sonnax Vacuum Test Plate Kits at Summit Racing for GM, Ford, and Toyota automatic transmissions. 

SEE SONNAX VACUUM TEST PLATE KITS AT SUMMIT RACING