What are the components of an automatic transmission?
Major parts of the automatic transmission include the torque converter, hydraulic pump, planetary gears, clutches, and brakes. The torque converter transmits engine power to the hydraulic pump and transmission input shaft. The planetary gears are lined up one after the other in a series.
What are input sensors used to determine shift points?
Turbine speed sensor (TSS) Known as an input speed sensor (ISS). This sensor sends a varying frequency signal to the TCU to determine the current rotational speed of the input shaft or torque converter.
What sensors measure speed?
A wheel speed sensor or vehicle speed sensor (VSS) is a type of tachometer. It is a sender device used for reading the speed of a vehicle’s wheel rotation. It usually consists of a toothed ring and pickup.
Can MAF sensor cause transmission problems?
The Mass Airflow Sensor measures airflow into the engine intake assembly and is used to determine engine load. If it fails it can cause automatic transmission problems such as late harsh shifts, early soft shifts, or can result in no shifting at all.
What kind of transmission is the 4L60E?
What is a 4L60E Transmission? The 4L60-E is an automatic shift, four-speed overdrive, longitudinally positioned transmission. It has been considered to be the best rendition of the finest overdrive automatic transmission ever produced.
Is the GM 4L60E a powertrain control module?
The new 4L60E featured a powertrain control module (PCM) which is able to control shifts using the feedback provided by the throttle position sensor (TPS), vehicle speed sensor (VSS), and other sensors. Today, you can find the 4L60E transmissions in GM vehicles such as:
How much fluid does a GM 4L60E need?
The 4L60E transmission weighs 146 pounds dry, and 162 wet. It requires 8.4 quarts (9.64″ torque converter) or 11.4 quarts (11.81″ torque converter) of transmission fluid, Below is a list of common transmission problems with the GM 4L60E Transmission and possible solutions to repair.
What causes the clutch to slip on a 4L60E?
The problem is in the valve body. Pull the pan and the filter, remove the solenoids and wiring harness, remove the valve body bolt, lift the valve body, and turn it over. The TCC regulator valve is located there. It wears out and causes the converter clutch to slip. Get an oversized replacement valve and reamer.