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Valve body problems, symptoms, and how G3 Transmission fixes them Modern 10-speed transmissions deliver great drivability when the hydraulics are healthy. When the valve body leaks or key circuits wear, you get shudder, harsh or delayed shifts, limp mode, and codes. Below are the most common failures in the GM 10L80, Ford 10R80, and Ford 10R140 valve bodies, and the upgrades we use to solve them the right way.

he GM 10L1000 transmission is one of the most advanced heavy-duty 10-speed automatics on the market. But along with that sophistication comes a long list of issues. Harsh shifting, converter shudder, and the infamous P0747 “Pressure Control Solenoid Stuck On” code are just a few of the problems tied directly to weaknesses in the factory valve body and pump. At G3 Transmission, we have developed a complete process for rebuilding and upgrading the 10L1000 valve body.

I build and repair modern transmissions every single day. When someone calls with a slipping shift, a flare between gears, shudder under...

If you’ve taken your heavy-duty GM truck into a dealership for transmission work lately, you may have heard the dreaded words: “We’re...

G3 Transmission – A Family-Owned & Veteran-Operated Transmission Shop in Kansas City, MO At G3 Transmission , we take pride in being a...

If you own a GMC Sierra 2500HD, Chevrolet Silverado 2500HD, or any Duramax-powered truck with the Allison 1000 transmission , you know...

If you own a GMC Sierra 2500HD, Chevrolet Silverado 2500HD, or any Duramax-powered truck with the Allison 10L1000 transmission , you know...