What Causes Transmission Problems After CV Joint Replacement

Transmission Problems After CV Joint Replacement

Introduction to the topic

Your vehicle’s transmission is the mechanical link between the engine and the wheels. Gears, a torque converter, and a differential are all part of it. When any one of these fails, it can have a devastating effect on your vehicle’s performance, and you may find yourself stuck. Because of this, it is in your best interest to be prepared in the event that something similar occurs again.

If you’ve just had CV joints replaced, you’re likely experiencing transmission issues. This article will cover those issues in depth to help you troubleshoot them in the future. Here, we’ll go through the telltale signs that something is wrong with your transmission, the parts that might have been replaced as a consequence of diagnostic testing or a complete overhaul, and the most typical causes of transmission failure.

What is transmission and the function it serves in your car?

The transmission is an integral portion of your car that receives power from the engine and sends it to the rest of the car’s moving parts. In a car, the transmission consists of the torque converter and the gearbox.

This system can be upgraded with the addition of a G-force sensor, which would improve performance by triggering features like anti-lock brakes and stability control.

A differential is a key part of the transmission that splits the power between the wheels for improved handling and traction.

It’s important to know the difference between the two primary transmission types in the automotive industry:

Manual transmission

With this transmission, you’ll need to physically move the gears yourself. These transmissions are not automatic and require the driver to manually change gears using a shifter that allows for three or more forward speeds. If you like to be hands-on when driving, this transmission is for you, but it can be pricey to repair if something goes wrong.

Automatic transmission

The computer regulates electromechanical or hydraulic operations that allow the vehicle to shift gears automatically. There will be fewer distractions for drivers, but more potential hazards.

Can a failed CV axle cause gearbox failure?

The correct response is “yes,” as this can indeed occur. The driveshaft will not be properly centred in the differential if the CV axle fails, preventing power from being delivered to the wheels.

A damaged CV axle should be fixed as soon as possible to prevent further transmission problems. The bearing inside the CV joint (also known as a constant velocity joint) that links the driveshaft to the differential carrier needs to be lubricated with grease. A dry bearing can create noise and wear out more quickly than usual, which can have multiple negative effects on the transmission.

Why do I have transmission issues after having my CV joints replaced?

Vehicle transmissions have been compared to the brain of a computer. They aid in transmitting engine power to the wheels and regulating vehicle velocity.

Transmissions are well worth keeping a look out for because of the vital role they play in society.

Keep in mind that a transmission is fluid-driven, thus the transmission fluid is critical to your vehicle’s continued operation.

An issue with the transmission fluid is usually the root cause of shifting issues like a grinding gear, a sluggish transmission, and other similar phenomena. Some of the issues are the ones listed above.

1. Transmission fluid leak

Checking for fluid leaks is one way to determine if your transmission is malfunctioning. The fluid is typically red in colour, so keep that in mind.

While leaks typically occur around the drain stopper or in other areas with a tight seal, they can occur elsewhere.

Always remember that transmission fluid is crucial to the proper functioning of your vehicle.

The leak needs to be repaired immediately to prevent further, costly damage.

2. A poor quantity and quality of transmission fluid

Yes, it’s true that low fluid levels in an automobile can be caused by a fluid leak. Always check the fluid level to ensure it is in good condition and can perform its function.

Keep in mind that the transmission fluid’s job is to lubricate and cool the transmission’s moving parts as it flows through the transmission.

Once the oil is low or breaks down, the transmission loses its effectiveness.

When this continues for too long, the transmission will eventually fail.

3. A transmission with a blocked filter

Many drivers don’t realise that their vehicle has a transmission fluid filter. This filter aids in maintaining the purity and efficacy of the fluid.

When the filter is full of debris, it cannot allow enough fluid to pass.

If there isn’t enough transmission fluid, the gears will grind to a standstill, and the gearbox will overheat.

As a result, fixing one of these issues will cost you a lot of money and damage your vehicle.

How can I tell if my CV axle is malfunctioning?

Experiencing vibrations and a lack of smooth driving could be signs that your CV axle needs replacing. When an axle breaks fully in two, power is redirected via the gearbox, which can cause grinding or slipping as ratios are changed.

The constant velocity (CV) joint is the part of the drivetrain that attaches the driveshaft to the differential carrier. There’s a bearing inside that has to be lubricated to prevent wear and noise. An entire CV axle, not just the driveshaft, will need to be replaced if it breaks. The use of car ramps or jack stands is essential when changing a CV axle because it is difficult to access under the vehicle.

After having CV joints replaced, how can I address transmission issues?

After replacing your CV joints, you may experience transmission issues, but there are solutions to these issues.

1. Fluid levels should be your priority

It’s important to get the transmission fluid level just right before driving again after a change. See if everything is in order by checking a designated area on your dashboard, which should be present in most modern vehicles.

To get your gearbox back up and running smoothly, get the oil checked and topped off if necessary. If you wait too long between fluid changes, you may need to change all of the fluid or up to around half of it to keep everything lubricated.

2. You should have an inspection performed

If you’ve replaced one or two CV joints and are still having issues, it’s probably time to take a closer look at the vehicle. You can probably handle this on your own after you have more information if the problem is anything like a seal that isn’t fitting quite right or something else similar that doesn’t affect the way your automobile functions.

If the problem persists, it’s time to give your mechanic a call so they can help you get it fixed before it gets worse. Assuming you’ve been keeping up with regular transmission servicing and maintenance, changing just one or two CV joints should no longer be a problem for your vehicle’s transmission.

3. Seek out a second opinion

If your car’s transmission is acting up after a thorough inspection of its other components, you may want to get a second opinion on the matter. This may seem like a waste of time, but it is often necessary to find problems that were missed by the original mechanic.

Watch Removing a stuck CV axle inner joint | Video

People also ask questions and answers related to Transmission problems after cv joint replacement

If a CV axle needs to be replaced, might it cause transmission damage?

The correct response is “yes,” as this can indeed occur. The driveshaft will not be properly centred in the differential if the CV axle fails, preventing power from being delivered to the wheels. A damaged CV axle should be fixed as soon as possible to prevent further transmission problems.

Is transmission vulnerability possible due to CV joint failure?

An impaired transmission may be affected by a cv joint failure. The power from the transmission is transmitted to the wheels via a CV axle, which consists of two CV joints and an axle shaft.

What causes damaged axle?

Axle problems might arise if the improper size or kind is ordered. There may be only a few millimetres of variation between the axle length of a car with a manual gearbox and one with an automatic, but that could be enough to throw off the alignment of a plunge joint.

Can a CV jointbe a source of transmission fluid leakage?

A transmission or differential could overheat and be damaged if the CV axle shaft seals failed. This is because the seals prevent fluid from leaking out of the gearbox or differential.

Does it look like the axle is linked to the gearbox?

There are essentially two distinct kinds of axles.
For automobiles, there are two distinct options for axles. The first is what you’d call the “drive axle,” and it’s the one that the “driveshaft” is attached to. A drive shaft is essentially just a rod that runs from the engine to the transmission of a car. This means the engine itself contributes to turning the axle.


Although transmission issues following CV joint replacement are problematic, you should be able to fix them without too much hassle if you follow these guidelines.

If your vehicle has a torque converter clutch or self-adjusting clutches, putting off fixing the problem could lead to damage down the road.

Before getting back behind the wheel after having your CV joints replaced, have your mechanic check for any cosmetic or structural damage to the front end.

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