TASC Force Tips: Hydraulics Fundamentals: Check Valves
while check valves are fairly simple in design and function, they can cause various shift issues and clutch failures when not working correctly.
Free Webinar from ASE: Basic Transmission Hydraulics
The National Institute for Automotive Service Excellence (ASE) is hosting a free webinar for service technicians on Friday, Jan. 29 at 4:00 p.m. ET entitled “Basic Transmission Hydraulics.” Mechanics, hydraulics and electronic controls are all merged into the modern ZF automatic transmission. Presented by Niel Speetjens of ZF Aftermarket, this webinar focuses on the hydraulic
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
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.
Converter Clutch Control Part 2
An understanding of hydraulics is essential for properly diagnosing and repairing transmission problems. This is part two of a two-part article on how an understanding of converter clutch control aids in transmission diagnostics. Part one described fluid path and torque converter terminology. Part two examines the source and factors affecting the control of the clutch.
Hydraulics Fundamentals: Converter Clutch Control Part 1
An understanding of hydraulics is essential for properly diagnosing and repairing transmission problems. This is part one of a two-part article on how an understanding of converter clutch control aids in transmission diagnostics. Part one describes fluid path and torque converter terminology. Part two addresses the valves that control those circuits and the clutch control.
Hydraulics Fundamentals: Secondary Regulators
Jim Dial discusses the importance of understanding hydraulics when working with transmissions.
Dodge 48RE Hydraulic Features Revealed
Dodge 48RE Hydraulic Features Revealed
TASC Force Tips
Author: Jim Dial
Units: 48RE vs. 46/47RE valve bodies
Issue: Differences in pressure curve & TCC clamping
