Car Repair World

  Why you should install a shift kit no matter what vehicle you drive Most people don't know it but automobile manufacturers intentionally allow the transmission to slip between gear changes in order to create a smoother transition from one gear to the next.  The term for this is shift overlap.  In lay terms, this means the transmission is in two gears simultaneously.  While this allows for a silky smooth transition between gear changes, it is not necessarily good for the transmission, vehicle performance or your wallet.  Here's why: Shift overlap reduces the efficiency and performance of your vehicle because during shift overlap the clutches for both gears are slipping, meaning the full power being made by the engine is not reaching the drive wheels.  The lost power is consumed by the slipping clutches.  In addition to a loss in efficiency and performance, slipping causes added wear on clutch discs and creates heat.  Both of which will ruin your ...

Automatic Transmission Replacement Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Check transmission fluid level, fill if necessary. 2 Road test the vehicle. 3 Get transmission to shift through all gears. 4 Disconnect the negative battery cable. 5 Disconnect the transmission throttle linkage at the vehicle carburetor/throttle body. 6 Remove the oil filler tube. 7 Park the vehicle on a solid level surface to ensure that it does not roll or lean when raised. 8 Jack up the front of the vehicle. Every vehicle comes from the factory with a jack. 9 Disconnect all the wiring connectors from the starter, solenoid, backup switches and sensors. Wrap the wiring connectors with electrical tape to cover / protect from dirt and damage. 10 Disconnect the starter wiring at the starter. 11 Remove the s...

Automatic Transmission Fluid Change Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Drive your vehicle to warm up the transmission fluid. Park the vehicle on a solid level surface. Set the parking brake and chock the rear wheels. 2 Using a floor jack, lift up the front of your vehicle. Secure the vehicle with jack stands on both sides for safety before starting any work. The pinch welds and the frame are the two best locations. Do not rely on the jack to hold the vehicle up while working. 3 Place a large drain pan under the transmission. Loosen the transmission pan bolts but do not remove. Starting at the rear, remove half of the transmission pan bolts. If the pan is stuck to the transmission, insert a flat head screw driver between the pan and the transmission and pry them apart. 4 Remove the rest of the transmission pan bolts an...

Automatic Transmission Clutch This article explains how an automotive transmission clutch assembly works. Helpful Information When cars were first invented the only option for a  transmission was manual (standard.)  This gear box was just that a box filled with  gears  that rotated together while engaging particular gears to different gear ratios. This operation would not be possible without the use of a clutch assembly. Common Problems Clutch slip, which occurs when the clutch disc has worn out and replacement is required. Clutch chatter, this occurs when the pressure plate has failed not producing the correct amount of pressure to hold the disc securely. An automotive clutch assembly is used to disengage the engine from the transmission and is comprised of a clutch disc, pressure plate, clutch fork, clutch cable or primary and secondary cylinder, throwout and pilot bearings, (Note: Some front wheel drive vehicles do not use a pilot bearing). A f...

Manual or Automatic: Which Transmission Is Better? Difference Between Manual And Automatic Transmission Manual or Automatic: Which Transmission Is Better? What kind of transmission is best for your needs? Manual and automatic transmissions each have their strengths and weaknesses. When you’re trying to decide which type is the best for your needs there are a number of factors to keep in mind. Manual transmissions are better in some areas, while automatics are better in others.   Which Is Stronger and Holds Up to More Abuse? In a nutshell, manual transmissions are stronger and hold up to more abuse. There are a few reasons for this. A manual transmission has no tiny orifices, valves, and actuators that can become plugged, clogged, or stop working. Push the clutch, move the shifter, release the clutch, and away you go. The shifter moves gears inside the transmission. The manual transmission has fewer points of failure. In fact, the manual transmission has quite a few fewer ...

Automatic Transmission Working Of Automatic Transmission Working Of Torque Converter Article explains how an automotive automatic transmission and torque converter works. Many automatic transmissions have a service filter in the transmission pan that should be changed at manufacturer specified intervals. When  servicing an automatic transmission  a complete fluid flush is recommended to clean the valve body,  torque converter  and fluid cooler. The driver selects a mode by maneuvering the gear shift lever, usually placed on the steering column or next to the driver's seat in the center console. It is necessary to depress the brake pedal before the gear selector can be moved from the "park" position. Gear selection options include (P) park, (R) reverse, (N) neutral, (O) overdrive, (D) drive. The park or P mode locks the transmission mechanically. This restricts movement of car in any direction. This is achieved using a metal rod that engages the output sha...