Torque Converters For Sale The torque converter in your vehicle acts as a hydrodynamic fluid-coupling device. Converters are found between the engine and transmission in automatic vehicles. They take the place of mechanical clutch systems found in standard transmissions. The coupler also multiplies torque during acceleration, acting as a reduction gear. Components in a torque converter: The stator in a converter is the component that makes the difference between a fluid-coupling system and one that converts or multiplies torque. If the stator is not working, there will be no change in the amount of torque. This portion of the system changes the fluid flow and allows the drive wheels to receive more torque than is actually produced by the engine alone.The cover of the torque converter is located towards the engine side of the assembly. It provides the connection to the flywheel of the engine and holds the fluid needed for operation. While the cover does not actively produce torque, it must be able to withstand the high hydraulic pressure produced by the converter. It must also be able to withstand the thrust and torsional stress of the system.The impeller pump is located on the transmission end of the converter. This pump contains the fins that force fluid to the turbine. The turbine is attached with a spline from the input shaft on the transmission to the drive train of the vehicle. Movement of the turbine allows vehicle movement. Some converters also use a temporary locking mechanism that reduces slippage and increases fuel economy. Signs of converter failure: A defective converter can cause your transmission to slip. You may also notice surging or lurching. A delay in shifting, most noticeable when shifting from park into […]
Transfer Cases for Sale
Transfer Cases for Sale The drive train system in all four-wheel drive enabled vehicles uses what is known as a transfer case for engagement. These can be produced by automakers in multiple versions. The most common types of assemblies that are found through Internet sellers are preowned condition units transfer cases for sale. Pro Auto USA maintains what could be the largest source to find these units for sale prices online. If you can’t find a case locally, researching our database will usually find a match for you. Types of Transfer Cases in 4×4 Vehicles 1. Manual or Stick Shift There are two different versions of manual case assemblies. These were used until the late 1980s before electronic modules were commonplace. Some units consist of a manual level that must be engaged from inside of a 4WD vehicle. Popular manufacturers of these units include Borg Warner and New Process Gear. A secondary type of manual edition unit requires the turning of a special known located on the driver side of a front axle. These are more common in Jeep vehicles built prior to 1988. 2. Automatic Assembly Just like an auto transmission, the automatic transfer case uses a series of gears combined with electronic controls. Modules are used to send electronic pulses to the drive train system to engage the various types of gearing needed for off-road activities. The automatic units are more common in vehicles produced within the past 25 years in the global auto market. The automatic assemblies still maintain the use of transfer case fluid to ensure that all gears are lubricated when shifted. Preowned Transfer Cases Fluid Tested Buying from a dealer is a regular process. What is not regular is […]
Transmission Control Modules For Sale
Transmission Control Modules For Sale Pro Auto USA parts supply has vast experience when it comes to identifying and selling transmission control modules, or TCMs. The TCM, a small electronic computer encased in a box, is usually mounted on the firewall behind the engine. It is a small, compact CPU that interpret signals from various sensors which govern transmission operations. It works in conjunction with the engine control module, but primarily is responsible for selecting the proper gear and shifting time that allows the vehicle to maintain optimum performance. It measures different input information from sensors, like engine RPM, throttle position and vehicle speed. Once it receives signals from the various sensors, such as the turbine speed sensor, vehicle speed sensor, kick down switch, cruise control, brake light switch, transmission control and transmission fluid temperature sensor it activates a solenoid inside the transmission. The solenoid valve directs transmission fluid to disengage or activate small brakes and clutches in the transmission that control the gear shifting sequences. This prevents slippage and lag time when the vehicle needs to shift properly during different driving conditions. What does the TCM do? The TCM promotes smoother shifting, better fuel economy, reduced emissions, improved shift timing, shift feel, faster shifting speed and better overall handling and response. It performs this function if the transmission is up-shifts or down-shifts, or in any of three modes: manual, automatic or semi-automatic. When the TCM receives a fault signal from one of the sensors or a related component, like the trans-axle, it stores and saves a fault code. It deletes the fault if it can not identify it. The newest transmissions that have the 5-speed automatic option have control modules that keep the transmission […]
