Hydraulics Fundamentals: Shift & Relay Valves
Shift valves and relay valves share a lot of the same duties. This article is one of a series by Sonnax exploring how valves and hydraulic circuits work and what results when they quit functioning correctly.
Hydraulics Fundamentals: Clutch Regulator Valves
Knowing how these circuits work and the slightly different variations that the manufacturers utilize should pinpoint any valve body-related issues
Transmissions & Oversized Tires
How Changing Gear Ratios Helps Prevent Drivetrain Damage
68RFE Overdrive Clutch Failure
What to Check First When Troubleshooting OD Issues
Tips for Safe Pressure Switch Removal
When disassembling a Toyota/Lexus U660E valve body, pay close attention while removing the pressure switch from the valve body.
6R140 Transmission Solenoid Strategy Code
When replacing solenoids, plan ahead and order the correct band numbers that came out of the transmission in the same location as they came out of.
Hydraulic Fundamentals: AFL/Solenoid Modulator Valves
Knowing your transmission’s hydraulic circuit — and solenoid circuits in particular — can be very helpful when identifying the underlying cause.
Hydraulics: Converter Limit Valves
This article is one of a series by Sonnax exploring how valves and hydraulic circuits work and what results when they quit functioning correctly.
Hydraulics Fundamentals: Manual Valves
An understanding of hydraulics is essential for properly diagnosing and repairing transmission problems. This article is one of a series by Sonnax exploring how valves and hydraulic circuits work and what results when they quit functioning correctly.
Tasc Force Tips: Ford E4OD, 4R100
Ford E4OD, 4R100
Critical Wear Areas & Vacuum Test Locations
Tasc Force Tips: Critical Wear Areas & Vacuum Test Locations
Critical Wear Areas & Vacuum Test Locations
Spotting the Changes to Ford 6R80 ’15-Later Valve Bodies
Ford has made some changes to the ’15-later 6R80 valve bodies that you’ll want to note to prevent any interchange and drivability problems.