Automatic transmission slippin

Automatic transmission slipping: causes, signs and maintenance

The efficiency of an automatic transmission is essential to the overall performance and driving experience of a vehicle. Slipping, however, is a frequent problem that may affect automatic Transmission. When an automatic gearbox slips, it loses acceleration or has trouble changing gears because the transmission is unable to maintain a constant power flow. It may be an irritating and even harmful issue that needs immediate action.

We will look at the causes, signs, and various remedies for automatic transmission slipping in this article. To comprehend how sliding might happen, we shall examine the mechanical and electrical components of an automatic transmission system. We hope to provide readers with a thorough grasp of the issue and arm them with the information to accurately identify and address transmission slippage by looking at all of the factors that contribute to this problem.

Read more: Understanding Automatic Transmission System

Automatic transmission slippin

  • What is an automatic transmission?
  • what causes Automatic transmission slipping?
  • What are the signs of automatic transmission slipping?
  • How do you solve the automatic transmission slipping problem?
  • How do you maintain an automatic transmission?

So, let’s begin!


What is an automatic transmission?

An automatic transmission, usually called an auto transmission or just “automatic,” is a type of transmission system that is frequently seen in cars. It is intended to shift gears on its own without the driver having to manually do anything. Automatic transmissions carry out these tasks automatically, as opposed to manual transmissions, which depend on the driver to engage and release the clutch and change speeds using a gear lever or paddle shifters.

In comparison to manual transmissions, the automatic transmission has several benefits, such as convenience, ease of use, and smooth gear changes. Without the necessity for manual shifting, it enables drivers to concentrate more on driving and vehicle control. Because of this, automatic gearboxes are particularly common in cities and other areas with heavy traffic.

Read more: Understanding Automatic Transmission System

what causes Automatic transmission to slip?

Automatic transmission slipping can be caused by several things, such as mechanical, hydraulic, or electrical problems. Here are a few typical reasons why automatic transmissions slip:

Worn Clutch Plates

To change gears, sets of clutch plates in the transmission engage and disengage. These clutch plates may eventually wear out or burn, losing friction and causing the transmission to slide. Replacement of worn clutch plates may be necessary to restore normal operation.

Low Transmission Fluid

Slipping may result from insufficient or deteriorated transmission fluid. The transmission system needs transmission fluid for lubrication, cooling, and hydraulic pressure. Slipping can occur if the fluid level is low or polluted, which can prevent the clutch from engaging properly.

Read more:  Working principle of manual and automatic transmission system

Faulty Solenoids

Solenoids are used in automatic transmissions to manage the fluid flow, engage the clutch plates, and change gears. The hydraulic pressure can be disrupted and the gearbox can slide as a result of broken or malfunctioning solenoids.

Damaged or Worn Bands

Metal bands called transmission bands are used to keep and secure some gears in position. The bands may stop offering the required grip on the gears if they get old, damaged, or poorly set, which might cause sliding.

Faulty Torque Converter

Power is transferred from the engine to the transmission by the torque converter. A lack of power transfer and sliding can occur if the torque converter is defective or has internal damage.

Read more:  Working principle of manual and automatic transmission system

Electronic Control Module (ECM) Issues

The ECM is in charge of observing and managing several transmission system components. Electrical issues or failures in the ECM might cause faulty gear engagement, which can cause slippage.


Overheating can deteriorate transmission parts and alter the fluid’s characteristics, which can cause sliding. Overheating may result from prolonged heavy hauling, hot weather driving, or insufficient cooling.

Mechanical Component Wear

Other mechanical parts that are subject to wear and tear, including bearings, bushings, or shafts, may become misaligned or have too much play, which can cause the gearbox to slip.

It’s crucial to remember that automatic transmission sliding might happen as a result of a mixture of these causes or other exceptional conditions. To address the precise cause of slippage and avoid additional transmission damage, prompt diagnosis and proper repairs by a skilled technician or transmission specialist are required.

Read more: Things you need to know about manual transmission system

What are the signs of automatic transmission slipping?

Depending on how serious and what the underlying cause of the problem is, there may be several automatic transmission slipping signs. The following are some warning indicators to look out for:

RPM Fluctuations

You could see sudden or erratic fluctuations in the engine’s RPM (revolutions per minute) when accelerating while the transmission is sliding. Without a proportional increase in speed, the engine RPM may rise dramatically.

Delayed or Sluggish Acceleration

When you push the gas pedal, a slipping transmission may cause a delay or pause in acceleration. The car can take longer to accelerate to the intended speed or you might experience a lack of power.

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Difficulty Shifting Gears

Gear shifting issues may result from a slipping transmission. When changing into Drive or Reverse, engagement may be delayed, and you could have trouble keeping in one gear or another.

Loss of Power

A significant loss of power and poorer overall performance might result from a sliding transmission. When attempting to accelerate or ascend inclines, you can experience a lack of responsiveness or a reduction in power output.

Burnt Smell or Overheating

A slipping transmission may produce excessive heat, which may cause the transmission fluid to smell burned. Additionally, you can observe overheating symptoms including an increase in engine temperature or fluid leaks.

Transmission Fluid Leaks

Fluid leaks from a slipping transmission may be noticeable near the transmission or on the ground underneath the car. Leaks in the transmission fluid, which is essential for lubricating and cooling the gearbox, can make sliding problems worse.

Unusual Noise

Slipping transmissions may cause unusual sounds. While driving, the gearbox may make whining, grinding, or buzzing noises, especially while shifting into or out of gear.

A correct diagnosis by a competent technician or transmission specialist is essential since these symptoms might also be an indication of other transmission issues. To prevent further damage and for safe vehicle operation, it is advised to have your automatic transmission examined and fixed as soon as you suspect sliding.

Read more: Various types of transmission systems and their advantages

How do you solve the automatic transmission slipping problem?

Finding and fixing the root of the problem is necessary to fix automatic transmission sliding. Depending on the precise reason, the following potential remedies are listed:

Check Transmission Fluid Level and Quality

Make that the transmission fluid is in good condition and at the proper level. Perform a transmission fluid replacement or top-up to the required amount if the fluid is low or deteriorated. For information on the right fluid type and replacement cycle, refer to your vehicle’s handbook.

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Repair or Replace Worn Clutch Plates

It could be necessary to replace the clutch plates if worn-out or burned ones are the root of the sliding. To access the clutch pack, the transmission is normally taken apart and removed. It’s a difficult process that should only be handled by a trained transmission professional.

Adjust or Replace Bands

Bands may need to be adjusted or replaced if they are sliding due to deterioration or faulty adjustment. This entails gaining access to the transmission, making the required corrections, and maybe replacing the bands if they are damaged or worn.

Address Faulty Solenoids

The solenoids may need to be fixed or replaced if they are malfunctioning and generating hydraulic problems that are causing slippage. Particular solenoid-related problems can be found with the use of a diagnostic scan tool. For an accurate diagnosis and, if necessary, solenoid replacement, consult an expert.

Resolve Torque Converter Problems

It can be necessary to repair or replace the torque converter if it is damaged or failing. The torque converter must be taken out and replaced, which is a labor-intensive job best left to trained experts.

Repair Electronic Control Module (ECM) Issues

If sliding is caused by ECM faults, identify and fix the individual electrical issues. This can entail taking care of the ECM’s wiring or sensor problems, as well as repairing or replacing the ECM.

Perform Transmission Overhaul

A transmission overhaul or rebuild may be required in extreme circumstances where several components are harmed or worn out. To guarantee appropriate operation, the gearbox is disassembled, its worn parts are replaced, and it is then put back together.

It’s crucial to remember that dealing with automatic transmission sliding is a challenging undertaking best left in the hands of specialists in transmission repair. They can identify the precise reason why your car is slipping and suggest the best course of action. Regular maintenance, such as fluid changes and inspections, may preserve the durability of your gearbox and help prevent sliding problems.

How do you maintain an automatic transmission?

An automatic transmission’s durability and flawless operation depend on regular maintenance. To assist you maintain the health of your automatic Transmission, consider the following maintenance advice:

Regularly Check Transmission Fluid

According to the specified timetable for your vehicle, keep an eye on the condition and level of the transmission fluid. Low or polluted fluid can cause sliding and other transmission issues. Follow the manufacturer’s instructions to top up or replace the transmission fluid if necessary.

Follow Fluid Change Intervals

Follow the owner’s handbook for your car’s suggested intervals for changing the transmission fluid. Maintaining adequate lubrication, cooling, and hydraulic pressure inside the gearbox is made easier by routine fluid changes.

Use the Correct Fluid Type

Make sure you use the transmission fluid type that the car’s manufacturer has recommended. Different transmissions need different fluid formulas, and using the incorrect one might harm your transmission. If you are doubtful, check the owner’s handbook or a specialist.

Avoid Overloading and Excessive Towing

Frequently pulling big goods or overloading your car can put a lot of stress on the transmission. Keep to the appropriate weight limitations, and for heavy towing, think about adding additional cooling systems such as auxiliary coolers.

Practice Smooth Driving Habits

Avoid abrupt or forceful acceleration since it might overtax the transmission. The health of the transmission may be maintained by using smooth and moderate acceleration, mild braking, and avoiding rapid gear changes.

Keep the Transmission Cool

A typical cause of transmission problems is overheating. Maintaining the transmission fluid within ideal temperature ranges will ensure proper cooling. Consider adding a transmission cooler if you travel a lot in warm weather, haul big loads, or face challenging road conditions.

Check for Leaks

Check the transmission often for indications of fluid leakage. Have any fluid leaks quickly fixed by a trained technician if you detect them. Low fluid levels from transmission fluid leaks might result in damage and sliding.

Schedule Professional Inspections

Have a competent technician or transmission specialist examine your transmission regularly. They can look for any indications of wear, fluid tainting, or other possible problems and suggest any required upkeep or repairs.


What causes the clutch slave cylinder to fail?

Contamination of the hydraulic fluid or simply the use of the incorrect type of hydraulic fluid is the most frequent problem for clutch master and slave cylinders. The rubber seals inside the cylinder can enlarge over time if even the tiniest amount of contamination, such as engine oil, gearbox oil, washer fluid, or antifreeze, is present.

Can a slave cylinder fail without leaking?

Slave cylinders can malfunction internally even if there is no outward leak.

What happens when a clutch slave cylinder goes bad?

The pedal may feel spongy or mushy if the clutch slave cylinder develops any kind of leak, either internally or externally. Additionally, the pedal could completely sink to the floor and remain there when depressed, making it difficult to securely change the transmission.

Can a car run without a slave cylinder?

A clutch slave cylinder, often known as a CSC, is essential to the operation of a manual gearbox system. A motorist wouldn’t be able to change gears without it. When you depress the clutch pedal, pressure plates move to disconnect the clutch from the car’s engine.

What does a failing slave cylinder feel like?

One of the best indicators of a defective clutch slave is a change in the clutch pedal. A slave cylinder issue may be present if the pedal feels mushy. When pushed, the pedal may also become stuck to the floor and prevent the clutch from disengaging correctly.

What makes a slave cylinder go out?

The clutch slave cylinder, which is used each time the clutch is depressed, might degrade with time. The car won’t be able to correctly shift gears when the slave cylinder deteriorates, and there will be several other problems as well.

What damages the slave cylinder?

Since hydraulics are required for the effective working of clutch slave cylinders, leaks are the most common issue that arises. Repeated use may ultimately cause the part to degrade, which would then allow the transmission fluid within to leak.

Can a slave cylinder be fixed?

It is susceptible to wear much like the disks. However, if damage occurs, there is no way to fix the CSC; the only solution is to replace the slave cylinder.

Does the slave cylinder affect the brakes?

To complete the amplifying of the forces from your foot inputs through to the clutch and brakes, a car’s slave cylinders are needed.

Can a slave cylinder fail suddenly?

The most frequent causes of unexpected failure include a broken or slack clutch cable, a failed hydraulic master/slave cylinder, or a linkable. Additionally, the hydraulic line may have leaks, and the disc itself may be contaminated with dirt or other contaminants.

How long does the clutch slave cylinder last?

Despite this, there isn’t a set length of time for clutch slave cylinder replacement because it isn’t a part of routine maintenance. It’s realistic to assume that the slave cylinder will start to leak eventually if you’ve owned your car for a while or if you acquired an older model.

That’s all for this article where the answers to the following questions were discussed;

  • What is an automatic transmission?
  • what causes Automatic transmission to slip?
  • What are the signs of automatic transmission slipping?
  • How do you solve the automatic transmission slipping problem?
  • How do you maintain an automatic transmission?

Hope it was helpful. If so, kindly share. Thanks for reading.